severe accident mitigation design alternatives (samdas) for the … · 2015. 1. 21. · samdas...

SAMDAs APR1400-E-P-NR-14006-NP, Rev. 0

KEPCO & KHNP

Non-Proprietary

Severe Accident Mitigation Design Alternatives (SAMDAs) for the APR1400

Revision 0

Non-Proprietary

December 2014

Copyright ⓒ 2014

Korea Electric Power Corporation &

Korea Hydro & Nuclear Power Co., Ltd

All Rights Reserved


KEPCO & KHNP i

Non-Proprietary

REVISION HISTORY

Revision Date Page Description

0 December. 2014 All First Issue

This document was prepared for the design certification

application to the U.S. Nuclear Regulatory Commission and

contains technological information that constitutes intellectual

property.

Copying, using, or distributing the information in this

document in whole or in part is permitted only by the U.S.

Nuclear Regulatory Commission and its contractors for the

purpose of reviewing design certification application

materials. Other uses are strictly prohibited without the

written permission of Korea Electric Power Corporation and

Korea Hydro & Nuclear Power Co., Ltd.


KEPCO & KHNP ii

Non-Proprietary

U

ABSTRACT

This document represents the SAMDA analysis for the APR1400 design. Specifically, this report documents the calculation of the monetary value of unmitigated base risk, then evaluates the maximum risk reduction that could be expected from implementing a risk reduction strategy. Consideration of SAMDAs includes identifying a broad range of potential alternatives, then determining whether or not implementation of those alternatives is feasible or would be beneficial on a cost-risk reduction basis.

Preliminary screening eliminated all SAMDA candidates from further consideration, based on inapplicability to the APR1400 design, design features that have already been incorporated into the APR1400 design, inapplicability to a design certification analysis, or extremely high cost of the alternatives considered.


KEPCO & KHNP iii

Non-Proprietary

TABLE OF CONTENTS

TABLE OF CONTENTS .................................................................................................. III

LIST OF TABLES ........................................................................................................... IX

ACRONYMS AND ABBREVIATIONS .............................................................................. XI

1. PURPOSE ............................................................................................................... 1

2. METHODOLOGY .................................................................................................... 2

3. BASE RISK ............................................................................................................ 3

4. UNMITIGATED RISK MONETARY VALUE ............................................................ 4

4.1. Averted Public Exposure ................................................................................................................. 4

APE for At-Power Internal Events ................................................................................................... 5 4.1.1.

APE for At-Power Internal Flooding Events .................................................................................... 5 4.1.2.

APE for At-Power Internal Fire Events ............................................................................................ 5 4.1.3.

APE for LPSD Internal Events ......................................................................................................... 5 4.1.4.

APE for LPSD Flooding Events ....................................................................................................... 5 4.1.5.

APE for LPSD Fire Events ............................................................................................................... 5 4.1.6.

Total APE ......................................................................................................................................... 6 4.1.7.

4.2. Averted Public Offsite Property Damage Costs .............................................................................. 6

AOC for At-Power Internal Events ................................................................................................... 6 4.2.1.

AOC for At-Power Internal Flooding Events .................................................................................... 6 4.2.2.

AOC for At-Power Internal Fire Events ............................................................................................ 6 4.2.3.

AOC for LPSD Internal Events ........................................................................................................ 6 4.2.4.

AOC for LPSD Flooding Events ...................................................................................................... 6 4.2.5.

AOC for LPSD Fire Events .............................................................................................................. 7 4.2.6.

Total AOC ........................................................................................................................................ 7 4.2.7.

4.3. Averted Occupational Exposure ...................................................................................................... 7

Averted Immediate Occupational Exposure Costs .......................................................................... 7 4.3.1.

Averted Long-Term Occupational Exposure Costs ......................................................................... 8 4.3.2.

Total Averted Occupational Exposure Costs ................................................................................. 10 4.3.3.

4.4. Averted Onsite Costs ..................................................................................................................... 11

Averted Cleanup and Decontamination Costs .............................................................................. 11 4.4.1.

Averted Replacement Power Costs ............................................................................................... 12 4.4.2.

Averted Repair and Refurbishment Costs ..................................................................................... 14 4.4.3.

Total Averted Onsite Costs ............................................................................................................ 14 4.4.4.

4.5. Cost Enhancement ........................................................................................................................ 15


KEPCO & KHNP iv

Non-Proprietary

4.6. Total Unmitigated Baseline Risk .................................................................................................... 15

5. IDENTIFICATION OF SAMDAS ............................................................................ 17

6. SAMDA SCREENING ........................................................................................... 18

7. SAMDA BENEFIT EVALUATION .......................................................................... 19

7.1. Emergency Diesel Generator Events ............................................................................................ 19

EDG DG001A Events .................................................................................................................... 19 7.1.1.

EDG DG001B Events .................................................................................................................... 20 7.1.2.

EDG DG001C Events .................................................................................................................... 20 7.1.3.

EDG DG001D Events .................................................................................................................... 21 7.1.4.

Load Sequencer Events ................................................................................................................ 21 7.1.5.

Total EDG Event Summary ........................................................................................................... 21 7.1.6.

7.2. Alternate AC Diesel Generator Events .......................................................................................... 22

AAC DG Events ............................................................................................................................. 22 7.2.1.

AAC DG Fuel Oil Pump PP02 Events ........................................................................................... 22 7.2.2.

7.3. Auxiliary Feedwater Events ........................................................................................................... 23

AFW Isolation Valve MOV-45 Events ............................................................................................ 23 7.3.1.

AFW Isolation Valve MOV-46 Events ............................................................................................ 23 7.3.2.

Turbine-Driven AFW Pump PP01A Events ................................................................................... 23 7.3.3.

Turbine-Driven AFW Pump PP01B Events ................................................................................... 24 7.3.4.

Motor-Driven AFW Pump PP02A Events ...................................................................................... 24 7.3.5.

Motor-Driven AFW Pump PP02B Events ...................................................................................... 25 7.3.6.

Startup FW Pump PP07 Events .................................................................................................... 25 7.3.7.

Total AFW Isolation Valve Event Summary .................................................................................. 25 7.3.8.

Total Turbine-Driven AFW Pump Event Summary ........................................................................ 26 7.3.9.

Total Motor-Driven AFW Pump Event Summary ........................................................................... 26 7.3.10.

7.4. Barrier Failure Events .................................................................................................................... 26

Barrier Unavailability Between F078-AGAC and F078-AGAD Event ............................................ 26 7.4.1.

Barrier Failure Between F120-AGAC and F120-AGAD Event ...................................................... 27 7.4.2.

Total Barrier Failure Event Summary ............................................................................................ 27 7.4.3.

7.5. Component Cooling Water Events ................................................................................................ 27

CCW Pump PP02A Events ........................................................................................................... 27 7.5.1.

CCW Pump PP02B Events ........................................................................................................... 28 7.5.2.

Containment Spray Heat Exchanger HE01A CCW Inlet Valve MOV-97 ...................................... 28 7.5.3.

Containment Spray Heat Exchanger HE01B CCW Inlet Valve MOV-98 ...................................... 28 7.5.4.

Total CCW Pump Event Summary ................................................................................................ 29 7.5.5.


KEPCO & KHNP v

Non-Proprietary

Total Containment Spray Heat Exchanger CCW Inlet Valve Event Summary.............................. 29 7.5.6.

7.6. Containment Spray Events ............................................................................................................ 30

Containment Spray Pump PP01A Events ..................................................................................... 30 7.6.1.

Containment Spray Pump PP01B Events ..................................................................................... 30 7.6.2.

Containment Spray Isolation Valve MOV-003 Events ................................................................... 30 7.6.3.

Containment Spray Isolation Valve MOV-004 Events ................................................................... 31 7.6.4.

Total Containment Spray Pump Event Summary .......................................................................... 31 7.6.5.

Total Containment Spray Isolation Valve Event Summary............................................................ 31 7.6.6.

7.7. Charging Pump Events .................................................................................................................. 32

Charging Pump PP03 Events ........................................................................................................ 32 7.7.1.

7.8. 125 Vdc Power Events .................................................................................................................. 32

125 Vdc Battery BT01A Events ..................................................................................................... 32 7.8.1.

125 Vdc Battery BT01B Events ..................................................................................................... 33 7.8.2.

125 Vdc Battery BT01C Events ..................................................................................................... 33 7.8.3.

125 Vdc Battery BT01D Events ..................................................................................................... 33 7.8.4.

Total 125 Vdc Battery Event Summary ......................................................................................... 34 7.8.5.

7.9. 120 Vac Power Events .................................................................................................................. 34

120 Vac Inverter IN01A ................................................................................................................. 34 7.9.1.

120 Vac Inverter IN01B ................................................................................................................. 34 7.9.2.

120 Vac Inverter IN01C ................................................................................................................. 35 7.9.3.

120 Vac Inverter IN01D ................................................................................................................. 35 7.9.4.

Total 120 Vac Inverter Event Summary......................................................................................... 36 7.9.5.

7.10. Grid Collapse on Turbine Trip Events ........................................................................................... 36

7.11. AC Power Events ........................................................................................................................... 36

Standby Auxiliary Transformer 02M Events .................................................................................. 36 7.11.1.

Standby Auxiliary Transformer 02N Events................................................................................... 37 7.11.2.

1E 4.16kV Switchgear SW01A Feed PCB SW01A-A2 from SAT Events ..................................... 37 7.11.3.

1E 4.16kV Switchgear SW01B Feed PCB SW01B-A2 from SAT Events ..................................... 37 7.11.4.

1E 4.16kV Switchgear SW01C Feed PCB SW01C-A2 from SAT Events ..................................... 38 7.11.5.

1E 4.16kV Switchgear SW01A Feed PCB SW01A-H2 from UAT Events ..................................... 38 7.11.6.

1E 4.16kV Switchgear SW01B Feed PCB SW01B-H2 from UAT Events ..................................... 39 7.11.7.

1E 4.16kV Switchgear SW01C Feed PCB SW01C-C2 from UAT Events .................................... 39 7.11.8.

1E 4.16kV Switchgear SW01D Feed PCB SW01D-G2 from UAT Events .................................... 39 7.11.9.

1E 4.16kV Switchgear SW01A Feed PCB SW01A-E2 from EDG Events .................................... 40 7.11.10.

1E 4.16kV Switchgear SW01C Feed PCB SW01C-E2 from AAC TG Events .............................. 40 7.11.11.

1E 4.16kV Switchgear SW01C Feed PCB SW01C-F2 from EDG Events .................................... 40 7.11.12.


KEPCO & KHNP vi

Non-Proprietary

N1E 4.16kV PNS Switchgear Feed PCB SW03N-F2 from AAC Switchgear Events .................... 41 7.11.13.

Primary Loop Controller LX06A Events ......................................................................................... 41 7.11.14.

Primary Loop Controller LX03C Events......................................................................................... 42 7.11.15.

Standby Auxiliary Transformer Event Summary .......................................................................... 42 7.11.16.

4.16kV Circuit Breaker Event Summary ........................................................................................ 42 7.11.17.

Primary Loop Controller Event Summary ...................................................................................... 43 7.11.18.

7.12. Pilot-Operated Safety Relief Valve Events .................................................................................... 43

Pilot-Operated Safety Relief Valve V200 Events .......................................................................... 43 7.12.1.




Total POSRV Event Summary ...................................................................................................... 45 7.12.5.

7.13. Seal Failure Events........................................................................................................................ 45

7.14. Station Blackout due to Turbine-Driven Auxiliary Feedwater Pump Events ................................. 45

7.15. Chiller/Cooler Events ..................................................................................................................... 45

Safety Injection Pump Room Cubicle Cooler HV11A Events ........................................................ 45 7.15.1.

Safety Injection Pump Room Cubicle Cooler HV11B Events ........................................................ 46 7.15.2.

Essential Chilled Water Chiller CH01A Events ............................................................................. 46 7.15.3.

Essential Chilled Water Chiller CH01B Events ............................................................................. 46 7.15.4.







Emergency Diesel Generator Room Cubicle Cooler HV12A Events ............................................ 49 7.15.11.

Emergency Diesel Generator Room Cubicle Cooler HV12B Events ............................................ 50 7.15.12.

Emergency Diesel Generator Room Cubicle Cooler HV12C Events ............................................ 50 7.15.13.

Emergency Diesel Generator Room Cubicle Cooler HV12D Events ............................................ 50 7.15.14.

Emergency Diesel Generator Room Cubicle Cooler HV13A Events ............................................ 51 7.15.15.

Emergency Diesel Generator Room Cubicle Cooler HV13B Events ............................................ 51 7.15.16.

Emergency Diesel Generator Room Cubicle Cooler HV13C Events ............................................ 51 7.15.17.

Emergency Diesel Generator Room Cubicle Cooler HV13D Events ............................................ 52 7.15.18.

Shutdown Cooling Pump 02A Room Cubicle Cooler HV16A Events ............................................ 52 7.15.19.

Shutdown Cooling Pump 02B Room Cubicle Cooler HV16B Events ............................................ 52 7.15.20.

Motor-Driven AFW Pump Room A Cubicle Cooler HV33A Events ............................................... 53 7.15.21.


KEPCO & KHNP vii

Non-Proprietary

Motor-Driven AFW Pump Room B Cubicle Cooler HV33B Events ............................................... 53 7.15.22.

Total SI Pump Room Cubicle Cooler Event Summary .................................................................. 54 7.15.23.

Total ECW Chiller Event Summary ............................................................................................... 54 7.15.24.

Total EDG Room Cubicle Cooler Event Summary ........................................................................ 54 7.15.25.

Total Shutdown Cooling Pump Room Cubicle Cooler Event Summary ........................................ 55 7.15.26.

Total Motor-Driven AFW Pump Room Cubicle Cooler Event Summary ....................................... 55 7.15.27.

7.16. Safety Injection Events .................................................................................................................. 55

SI Pump PP02 Events ................................................................................................................... 55 7.16.1.

SI Pump PP03 Suction Valve VV-130 Events ............................................................................... 56 7.16.2.

SI Pump PP03 Discharge Valve VV-435 Events ........................................................................... 56 7.16.3.

SI Pump PP01 Injection Line MOV-636 Events ............................................................................ 56 7.16.4.

In-Containment Refueling Water Storage Tank Sump Events ...................................................... 57 7.16.5.

7.17. Essential Service Water Events .................................................................................................... 57

ESW Pump PP02A Events ............................................................................................................ 57 7.17.1.

ESW Pump PP02B Events ............................................................................................................ 58 7.17.2.

ESW Filter FT01A Events .............................................................................................................. 58 7.17.3.

Total ESW Pump Events Summary ............................................................................................... 58 7.17.4.

7.18. Essential Chilled Water System Events ........................................................................................ 59

ECW Pump PP02A Events ............................................................................................................ 59 7.18.1.

ECW Pump PP02B Events ............................................................................................................ 59 7.18.2.

ECW Pump PP05A Events ............................................................................................................ 60 7.18.3.

Total ECW Pump Event Summary ................................................................................................ 60 7.18.4.

7.19. Turbine-Driven Auxiliary Feedwater Pump Steam Supply Valve Events ...................................... 60

Turbine-Driven AFW Pump Steam Supply Valve AOV-109 Events .............................................. 60 7.19.1.

Turbine-Driven AFW Pump Steam Supply Valve AOV-110 Events .............................................. 61 7.19.2.

Total Turbine-Driven AFW Pump Steam Supply Valve Event Summary ...................................... 61 7.19.3.

7.20. Scram due to Mechanical Failure Events ...................................................................................... 61

7.21. Group Controller GC1-PM3 Events ............................................................................................... 62

Group Controller Channel A GC-1 Output Events ......................................................................... 62 7.21.1.

Group Controller Channel B GC-1 Output Events ......................................................................... 62 7.21.2.

Total Group Controller GC-1 Output Channel Events ................................................................... 63 7.21.3.

7.22. Other Events from Top 100 Cutsets .............................................................................................. 63

8. SAMDA COST EVALUATION ............................................................................... 64

9. SAMDA COST-BENEFIT EVALUATION ................................................................ 65

10. SENSITIVITY ANALYSIS (3 PERCENT DISCOUNT RATE) ................................. 66


KEPCO & KHNP viii

Non-Proprietary

10.1. Averted Public Exposure ............................................................................................................... 67

APE for At-Power Internal Events ................................................................................................. 67 10.1.1.

APE for At-Power Internal Flooding Events .................................................................................. 67 10.1.2.

APE for At-Power Internal Fire Events .......................................................................................... 67 10.1.3.

APE for LPSD Internal Events ....................................................................................................... 67 10.1.4.

APE for LPSD Flooding Events ..................................................................................................... 67 10.1.5.

APE for LPSD Fire Events ............................................................................................................. 68 10.1.6.

Total APE ....................................................................................................................................... 68 10.1.7.

10.2. Averted Public Offsite Property Damage Costs ............................................................................ 68

AOC for At-Power Internal Events ................................................................................................. 68 10.2.1.

AOC for At-Power Internal Flooding Events .................................................................................. 68 10.2.2.

AOC for At-Power Internal Fire Events .......................................................................................... 69 10.2.3.

AOC for LPSD Internal Events ...................................................................................................... 69 10.2.4.

AOC for LPSD Flooding Events .................................................................................................... 69 10.2.5.

AOC for LPSD Fire Events ............................................................................................................ 69 10.2.6.

Total AOC ...................................................................................................................................... 69 10.2.7.

10.3. Averted Occupational Exposure .................................................................................................... 69

Averted Immediate Occupational Exposure Costs ........................................................................ 70 10.3.1.

Averted Long-Term Occupational Exposure Costs ....................................................................... 71 10.3.2.

Total Averted Occupational Exposure Costs ................................................................................. 72 10.3.3.

10.4. Averted Onsite Costs ..................................................................................................................... 73

Averted Cleanup and Decontamination Costs .............................................................................. 74 10.4.1.

Averted Replacement Costs .......................................................................................................... 75 10.4.2.

Averted Repair and Refurbishment Costs ..................................................................................... 76 10.4.3.

Total Averted Onsite Costs ............................................................................................................ 76 10.4.4.

10.5. Cost Enhancement ........................................................................................................................ 77

10.6. Total Unmitigated Baseline Risk .................................................................................................... 78

11. CONCLUSIONS .................................................................................................... 79

12. REFERENCES ...................................................................................................... 80

APPENDIX A. QUANTIFICATION RESULTS OF LEVEL 3 PRA USING WINMACCS CODE


KEPCO & KHNP ix

Non-Proprietary

LIST OF TABLES

Table 1a Base Case - Source Term Category Summary for At-Power Events ............................ 81

Table 1b Base Case – Source Term Category Summary for Low Power and Shutdown Events ........................................................................................................... 82

Table 2a Offsite Exposure By Source Term Category for At-Power Internal Events .................... 83

Table 2b Offsite Exposure By Source Term Category for At-Power Internal Flooding ................. 84

Table 2c Offsite Exposure By Source Term Category for At-Power Fire ...................................... 85

Table 2d Offsite Exposure By Source Term Category for Low Power and Shutdown Internal Events ............................................................................................................... 86

Table 2e Offsite Exposure By Source Term Category for Low Power and Shutdown Flooding ......................................................................................................................... 87

Table 2f Offsite Exposure By Source Term Category for Low Power and Shutdown Fire ................................................................................................................................. 88

Table 3a Offsite Property Damage Costs By Source Term Category for At-Power Internal Events ............................................................................................................... 89

Table 3b Offsite Property Damage Costs By Source Term Category for At-Power Internal Flooding ............................................................................................................ 90

Table 3c Offsite Property Damage Costs By Source Term Category for At-Power Fire .............. 91

Table 3d Offsite Property Damage Costs By Source Term Category for Low Power and Shutdown Internal Events ....................................................................................... 92

Table 3e Offsite Property Damage Costs By Source Term Category for Low Power and Shutdown Flooding ................................................................................................. 93

Table 3f Offsite Property Damage Costs By Source Term Category for Low Power and Shutdown Fire ......................................................................................................... 94

Table 4 Initial List of Candidate Improvements for the APR1400 SAMDA Analysis ................... 95

Table 5a List of Basic Events from APR1400 PRA CDF Importance Analysis (At-Power Internal Events)........................................................................................... 125

Table 5b List of Basic Events from APR1400 PRA CDF Importance Analysis (At-Power Internal Flooding Events) ............................................................................ 141

Table 5c List of Basic Events from APR1400 PRA CDF Importance Analysis (At-Power Fire Events) ................................................................................................ 150

Table 5d List of Basic Events from APR1400 PRA CDF Importance Analysis (LPSD Internal Events) ................................................................................................ 160

Table 5e List of Basic Events from APR1400 PRA CDF Importance Analysis (LPSD Internal Flooding Events) ................................................................................. 166

Table 5f List of Basic Events from APR1400 PRA CDF Importance Analysis (LPSD Fire Events) ................................................................................................................. 171

Table 6a List of Additional Basic Events from APR1400 PRA Cutset Review (At-Power Internal Events)........................................................................................... 182

Table 6b List of Additional Basic Events from APR1400 PRA Cutset Review (At-Power Internal Flooding Events) ............................................................................ 184


KEPCO & KHNP x

Non-Proprietary

Table 6c List of Additional Basic Events from APR1400 PRA Cutset Review (At-Power Fire Events) ................................................................................................ 187

Table 6d List of Additional Basic Events from APR1400 PRA Cutset Review (LPSD Internal Events) ................................................................................................ 190

Table 6e List of Additional Basic Events from APR1400 PRA Cutset Review (LPSD Internal Flooding Events) ................................................................................. 199

Table 6f List of Additional Basic Events from APR1400 PRA Cutset Review (LPSD Fire Events) ...................................................................................................... 203


KEPCO & KHNP xi

Non-Proprietary

ACRONYMS AND ABBREVIATIONS

AAC alternate alternating current

AC alternating current

ADV atmospheric dump valve

AF auxiliary feedwater

AFW auxiliary feedwater

AFWST auxiliary feedwater storage tank

AMSAC ATWS mitigation system actuation circuitry

AOC averted offsite property damage costs

AOE averted occupational exposures

AOSC averted onsite costs

AOV air-operated valve

APE averted public exposure

ASD auxiliary shutdown

ATWS anticipated transient without scram

BWR boiling water reactor

CCF common-cause failure

CDF core damage frequency

CE combustion engineering

CET containment event tree

CFR code of federal regulations

COE cost of enhancement

COL combined license

CPI consumer price index

CS containment spray

CST condensate storage tank

DC direct current

ECCS emergency core cooling system

ECSBS emergency containment spray backup system

ECW essential chilled water

EDG emergency diesel generator

EOP emergency operating procedure


KEPCO & KHNP xii

Non-Proprietary

FSAR final safety analysis report

GSI generic safety issue

HPCI high-pressure coolant injection

HP/LP high pressure/low pressure

HRA human reliability analysis

HVAC heating, ventilation, and air conditioning

HVT holdup volume tank

IRWST in-containment refueling water storage tank

ISLOCA interfacing system loss-of-coolant accident

LC load center

LOCA loss-of-coolant accident

LOCV loss of containment vacuum

LOOP loss of offsite power

LPSD low power and shutdown

LRF large release frequency

MCC motor control center

MCR main control room

MDAFP motor-driven auxiliary feedwater pump

MOV motor-operated valve

MSIV main steam isolation valve

NEI nuclear energy institute

NEPA national environmental policy act

NPV net present value

NRC nuclear regulatory commission

P&ID piping and instrumentation diagram

PAR passive autocatalytic recombiner

POSRV pilot-operated safety relief valve

PRA probabilistic risk assessment

PV present value

PW present worth

RCIC reactor core isolation cooling

RCP reactor coolant pump


KEPCO & KHNP xiii

Non-Proprietary

RPV reactor pressure vessel

RSP remote shutdown panel

SAMA severe accident mitigation alternative

SAMDA severe accident mitigation design alternative

SAT standby auxiliary transformer

SBO station blackout

SG steam generator

SGTR steam generator tube rupture

SLC secondary liquid control

STC source term category

SWGR switchgear

T&M test and maintenance

TB turbine building

TDAFP turbine-driven auxiliary feedwater pump

UAT unit auxiliary transformer

UFSAR updated final safety analysis report

WinMACCS melcor accident consequence code syste


KEPCO & KHNP 1

Non-Proprietary

1. PURPOSE

This document provides an evaluation of severe accident mitigation design alternatives (SAMDAs) for the APR1400 reactor. This evaluation is performed to address the potential costs and potential benefits of severe accident mitigation design alternatives for the APR1400 design. This document has been developed in accordance with applicable regulatory requirements as follows:

The National Environmental Policy Act (NEPA), Section 102.(C)(iii) requires, in part, that:

all agencies of the Federal Government shall ... (C) include in every recommendation or report on proposals for legislation and other major Federal actions significantly affecting the quality of the human environment, a detailed statement by the responsible official on ... (iii) alternatives to the proposed action.

10 CFR 52.47(b)(2) requires the submittal of an environmental report as required by 10 CFR 51.55.

10 CFR 51.55 requires each applicant for a standard design certification to submit with its application a separate document entitled, "Applicant's Environmental Report—Standard Design Certification." The environmental report must address the costs and benefits of severe accident mitigation design alternatives, and the bases for not incorporating severe accident mitigation design alternatives in the design to be certified.

The purpose of this report is to document the SAMDA analysis for the APR1400 design. Specifically, this report documents the calculation of the monetary value of unmitigated base risk, then evaluates the maximum risk reduction that could be expected from implementing a risk reduction strategy. Consideration of SAMDAs includes identifying a broad range of potential alternatives, then determining whether or not implementation of those alternatives is feasible or would be beneficial on a cost-risk reduction basis. This report also documents the identification, screening, and evaluation of SAMDAs for the APR1400 reactor design certification.


KEPCO & KHNP 2

Non-Proprietary

2. METHODOLOGY

Consideration of alternatives to mitigate severe accidents involves the following steps:

1. Determine the base risk presented to the surrounding population and environment by plant operation.

2. Calculate the monetary value of the unmitigated base risk. The monetized value of base risk is the maximum averted risk that is possible.

3. Identify potential SAMDAs.

4. Screen all potential SAMDAs for applicability to APR1400 and feasibility of implementation.

5. Evaluate potential SAMDAs not screened to determine the expected benefits of implementation for each.

6. Estimate the cost of implementing each SAMDA that is not screened.

7. Compare the estimated costs to the expected benefits to determine if implementation of any potential SAMDA would be cost-beneficial.

8. Evaluate how uncertainties could impact the cost-benefit analyses.

9. Perform sensitivity studies on the results.


KEPCO & KHNP 3

Non-Proprietary

3. BASE RISK

The first step to determine base risk is to develop and quantify the risk that could be presented by operation of an APR1400 reactor. Risk is calculated using a Level 1 and Level 2 probabilistic risk assessment (PRA) model. The results of that model provide overall risk measured by core damage frequency (CDF) and the characteristics of any expected radionuclide release following a severe accident.

The APR1400 Level 1 PRA model quantified at-power internal events, at-power internal fire, at-power internal flooding, and low power and shutdown (LPSD) internal events, LPSD fire events, and LPSD internal flooding events. Risk from other external events, e.g., high winds and seismic events, was determined to be negligible. Total CDF from the at-power internal events PRA is 1.3E-06 per year and is calculated as the sum of the 21 source term categories (STCs) calculated from the Level 2 PRA model. Total CDF from internal flooding events is 4.2E-07 per year. Fire-induced accident sequences had a calculated CDF of 2.1E-06 per year. LPSD internal event accident sequences had a calculated CDF of 2.9E-06 per year. LPSD flooding events had a CDF of 1.8E-08 per year and LPSD fire had a CDF of 1.7E-06 per year. Total CDF, therefore, is 8.5E-06 per year.

Using the results of the Level 1 PRA, the second step in determining base risk is to identify the characteristics of any expected radionuclide release following a severe accident and then to quantify the expected frequency of release. The APR1400 Level 2 PRA model characterizes releases into 21 STCs. Each of the STCs is distinguished by the magnitude of fission products released, the timing of the fission product release, and the pathway for the release. The STC definitions and contributions to risk are presented in Tables 1a and 1b.

For each STC, representative releases are determined. References 6 through 8 analyze representative sequences from each STC and develop timing and release characteristic information for representative fission product groups. This information is then used to approximate the radiological release plumes used in the Group Controller Level 3 analysis.

Offsite consequences are calculated from the Level 3 PRA analysis. For each STC, the Level 3 PRA provides values for the conditional offsite dose and conditional offsite property damage that would result given that a fission product release with the plume characteristics used to represent the source term occurred (Reference 4). The total expected dose consequence is obtained by multiplying the conditional offsite dose by the expected frequency for each STC, then summing the expected doses for all STCs. The conditional dose and expected dose for each STC along with the total expected dose are shown in Tables 2a through 2f. Similarly, the total expected property damage is obtained by multiplying the conditional property damage value by the expected frequency for each STC, then summing the expected property damage values for all STCs. The conditional property costs and expected property costs for each STC, along with the total expected property costs, are shown in Tables 3a through 3f.


KEPCO & KHNP 4

Non-Proprietary

4. UNMITIGATED RISK MONETARY VALUE

The unmitigated risk monetary value is calculated using the methodology given in Reference 1 for the performance of cost-benefit analyses. The value of unmitigated risk can be used to represent the maximum benefit that could be achieved if all risk were eliminated for operation of an APR1400 reactor. The methodology of Reference 1 determines the present worth net value of public risk according to the following formula:

NPV = (APE + AOC + AOE + AOSC) – COE (1)

Where:

NPV = present value of current risk ($) APE = present value of averted public exposure ($) AOC = present value of averted offsite property damage costs ($) AOE = present value of averted occupational exposure ($) AOSC = present value of averted onsite costs ($) COE = cost of any enhancement implemented to reduce risk ($)

The derivation of each of these costs is described in the subsections below. All equations used in the subsections below are taken from Reference 2, which is the basis for the equations in Reference 1.

The specific values that were used for present worth and dollars per rem in the analyses were determined as follows.

Present Worth

The present worth was determined by:

PW = [1 − e(−rt)] r⁄ (2)

Where:

r is the discount rate = 7% per year (assumed throughout these analyses)

t is the years remaining until end of plant life = 60 years

PW is the present worth of a string of annual payments of one dollar = $14.07

Dollars per rem

The conversion factor used for assigning a monetary value to onsite and offsite exposures was $2,000/person-rem averted. This is consistent with the U.S. Nuclear Regulatory Commission’s (NRC’s) regulatory analysis guidelines presented in and used throughout Reference 1.

4.1. Averted Public Exposure

Expected offsite doses from the internal events PRA accident sequences are presented in Tables 2a through 2f. Costs associated with these doses were calculated using the following equation:

APE = (𝐹𝑆𝐷𝑃𝑆 − 𝐹𝐴𝐷𝑃𝐴) × 𝑅 × [1 − e(−rtf)] r⁄ (3)

Where:


KEPCO & KHNP 5

Non-Proprietary

APE = present value of averted public exposure ($) R = monetary equivalent of unit dose ($2,000/person-rem) FS = baseline accident frequency (events per year from Tables 2a through 2f) FA = accident frequency after mitigation (0 events per year) FSDPS = baseline accident offsite frequency (person-rem per year from Tables 2a through 2f) FADPA = accident offsite dose frequency after mitigation (0 person-rem per year) r = real discount rate (7% per year) tf = years remaining until end of plant life (60 years)

Using the values given above, APE is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

APE for At-Power Internal Events 4.1.1.

APE(IE) = (5.05×10-1 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.07×60))/(0.07 per year))

= $14,212

APE for At-Power Internal Flooding Events 4.1.2.

APE(Fld) = (7.89×10-2 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.07×60))/(0.07 per year))

= $2,220

APE for At-Power Internal Fire Events 4.1.3.

APE(Fire) = (7.11×10-1 person-rem per year – 0)×($2,000/person-rem)×((1 – e – (0.07×60))/(0.07 per year))

= $20,009

APE for LPSD Internal Events 4.1.4.

APE(SDIE) = (6.51×10-1 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.07×60))/(0.07 per year))

= $18,320

APE for LPSD Flooding Events 4.1.5.

APE(SDFld) = (3.29×10-2 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.07×60))/(0.07 per year))

= $926

APE for LPSD Fire Events 4.1.6.

APE(SDFire) = (7.05×10-1 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.07×60))/(0.07 per year))


KEPCO & KHNP 6

Non-Proprietary

= $21,107

Total APE 4.1.7.

APETot = APE(IE) + APE(Fld) + APE(Fire) + APE(SDIE) + APE(SDFld) + APE(SDFire)

= $14,212 + $2,220 + $20,009 + $18,320 + $926 + $21,107

= $76,794

4.2. Averted Public Offsite Property Damage Costs

Annual expected offsite economic risk is shown in Tables 3a through 3f. The costs associated with AOC were calculated using the following equation:

AOC = (𝐹𝑆𝐷𝐷𝑆 − 𝐹𝐴𝐷𝐷𝐴) × [1 − e(−rtf)] r⁄ (4)

Where:

AOC = present value of averted offsite property damage costs ($) FSDDS = baseline accident frequency x property damage(cost per year from Tables 3a through 3f) FADDA = accident frequency x property damage after mitigation (0 events per year) r = real discount rate (7% per year) tf = years remaining until end of plant life (60 years)

Using the values given above, AOC is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

AOC for At-Power Internal Events 4.2.1.

AOC(IE) = ($1,391 per year – 0) × (1 – e – (0.07 × 60)) / (0.07 per year) = $19,571

AOC for At-Power Internal Flooding Events 4.2.2.

AOC(Fld) = ($196 per year – 0) × (1 – e – (0.07 × 60)) / (0.07 per year) = $2,762

AOC for At-Power Internal Fire Events 4.2.3.

AOC(Fire) = ($1,926 per year – 0) × (1 – e – (0.07 × 60)) / (0.07 per year) = $27,069

AOC for LPSD Internal Events 4.2.4.

AOC(SDIE) = ($1,822 per year – 0) × (1 – e – (0.07 × 60)) / (0.07 per year) = $25,388

AOC for LPSD Flooding Events 4.2.5.

AOC(SDFld) = ($74 per year – 0) × (1 – e – (0.07 × 60)) / (0.07 per year) = $1,041


KEPCO & KHNP 7

Non-Proprietary

AOC for LPSD Fire Events 4.2.6.

AOC(SDFire) = ($2,049 per year – 0) × (1 – e – (0.07 × 60)) / (0.07 per year) = $28,829

Total AOC 4.2.7.

AOCTot = AOC(IE) + AOC(Fld) + AOC(Fire) + AOC(SDIE) + AOC(SDFld) + AOC(SDFire)

= $19,571 + $2,762 + $27,096 + $25,388 + $1,041 + $28,829

= $104,687

4.3. Averted Occupational Exposure

There are two types of occupational exposure due to accidents: immediate and long-term. Immediate exposure occurs at the time of the accident and during the immediate management of the emergency. Long-term exposure is associated with the cleanup and refurbishment or decommissioning of the damaged facility. The value of avoiding both types of exposure must be considered when evaluating risk.

The occupational exposure associated with severe accidents was assumed to be 23,300 person-rem/accident. This value includes a short-term component of 3,300 person-rem/accident and a long-term component of 20,000 person-rem/accident. These estimates are consistent with the best-estimate values presented in Section 5.7.3 of Reference 2. In calculating base risk, the accident-related onsite exposures were calculated using the best-estimate exposure components applied over the onsite cleanup period. For onsite cleanup, the accident-related onsite exposures were calculated over a 10-year cleanup period. Costs associated with immediate dose, long-term dose, and total dose are calculated below for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events.

Averted Immediate Occupational Exposure Costs 4.3.1.

Per the guidance of Reference 1, costs associated with immediate occupational doses from an accident were calculated using the following equation:

𝑊𝐼𝐼 = (𝐹𝑆𝐷𝐼𝐼𝑆 − 𝐹𝐴𝐷𝐼𝐼𝐴) × 𝑅 × [1 − e(−rtf)] r⁄ (5)

Where:

WIO = present value of averted immediate occupational exposure ($) FS = baseline accident frequency (events per year from Tables 1a and 1b) FA = accident frequency after mitigation (0 events per year) DIOS = baseline expected immediate onsite dose (3,300 person-rem/event) DIOA = expected occupational exposure after mitigation (3,300 person-rem/event) R = monetary equivalent of unit dose ($2,000/person-rem) r = real discount rate (7% per year) tf = years remaining until end of plant life (60 years)

Using the values given above, WIO is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.


KEPCO & KHNP 8

Non-Proprietary

4.3.1.1. WIO for At-Power Internal Events

WIO(IE) = ((1.31×10-6 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.07 × 60)) / (0.07 per year)

=$122

4.3.1.2. WIO for At-Power Internal Flooding Events

WIO (Fld) = ((4.24×10-7 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $39

4.3.1.3. WIO for At-Power Internal Fire Events

WIO (Fire) = ((2.07×10-6 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $192

4.3.1.4. WIO for LPSD Internal Events

WIO (SDIE) = ((2.91×10-6 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $270

4.3.1.5. WIO for LPSD Flooding Events

WIO (SDFld) = ((1.84×10-8 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $2

4.3.1.6. WIO for LPSD Fire Events

WIO (SDFire) = ((1.74×10-6 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $162

Averted Long-Term Occupational Exposure Costs 4.3.2.

Per the guidance of Reference 2, costs associated with long-term occupational doses from an accident were calculated using the following equation:

𝑊𝐿𝐿𝐼 = (𝐹𝑆𝐷𝐿𝐿𝐼𝑆 − 𝐹𝐴𝐷𝐿𝐿𝐼𝑆) × 𝑅 × [1 − e(−rtf)] r⁄ × [1 − e(−rm)] r⁄ 𝑚 (6)

Where:


KEPCO & KHNP 9

Non-Proprietary

WLTO = present value of averted long-term occupational exposure ($) FS = baseline accident frequency (events per year from Tables 1a and 1b) FA = accident frequency after mitigation (0 events per year) DLTOS = baseline expected long-term onsite dose (20,000 person-rem/event) DLTOA = expected occupational exposure after mitigation (20,000 person-rem/event) R = monetary equivalent of unit dose ($2,000/person-rem) r = real discount rate (7% per year) m = years over which long-term doses accrue (10 years from Reference 2) tf = years remaining until end of plant life (60 years)

Using the values given above, WLTO is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

4.3.2.1. WLTO for At-Power Internal Events

WLTO(IE) = ((1.31×10-6 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.07 × 60)) / (0.07 per year) × ((1 – e – (0.07 × 10)) / ((0.07 per year) × (10 years))

=$530

4.3.2.2. WLTO for At-Power Internal Flooding Events

WLTO (Fld) = ((4.24×10-7 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.07 × 60)) / (0.07 per year) × ((1 – e – (0.07 × 10)) / ((0.07 per year) × (10 years))

= $172

4.3.2.3. WLTO for At-Power Internal Fire Events

WLTO (Fire) =((2.07×10-6 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.07 × 60)) / (0.07 per year) × ((1 – e – (0.07 × 10)) / ((0.07 per year) × (10 years))

= $838

4.3.2.4. WLTO for LPSD Internal Events

WLTO (SDIE) =((2.91×10-6 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.07 × 60)) / (0.07 per year) × ((1 – e – (0.07 × 10)) / ((0.07 per year) × (10 years))

= $1,178

4.3.2.5. WLTO for LPSD Flooding Events

WLTO (SDFld) =((1.84×10-8 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.07 × 60)) / (0.07 per year) × ((1 – e – (0.07 × 10)) / ((0.07 per year) × (10 years))

= $7


KEPCO & KHNP 10

Non-Proprietary

4.3.2.6. WLTO for LPSD Fire Events

WLTO (SDFire) =((1.74×10-6 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.07 × 60)) / (0.07 per year) × ((1 – e – (0.07 × 10)) / ((0.07 per year) × (10 years))

=$704

Total Averted Occupational Exposure Costs 4.3.3.

As described in Section 4.3, the total cost associated with averted occupational exposure (AOE) is the sum of the costs associated with averted immediate exposure and the costs associated with the averted long-term exposure, or:

AOE = WIO + WLTO (7)

Total averted onsite exposure costs are calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

4.3.3.1. AOE for At-Power Internal Events

AOE(IE) = $122 + $530 = $652

4.3.3.2. AOE for At-Power Internal Flooding Events

AOE (Fld) = $39 + $172 = $211

4.3.3.3. AOE for At-Power Internal Fire Events

AOE (Fire) = $192 + $838 = $1,030

4.3.3.4. AOE for LPSD Internal Events

AOE (SDIE) = $270 + $1,178 = $1,448

4.3.3.5. AOE for LPSD Flooding Events

AOE (SDFld) = $2 + $7 = $9

4.3.3.6. AOE for LPSD Fire Events

AOE (SDFire) = $162 + $704 = $866

4.3.3.7. Total AOE

AOE Tot = AOE(IE) + AOE(Fld) + AOE(Fire) + AOE(SDIE) + AOE(SDFld) + AOE(SDFire)

= $652 + $211 + $1,030 + $1,448 + $9 + $866

= $4,216


KEPCO & KHNP 11

Non-Proprietary

4.4. Averted Onsite Costs

Reference 2 defines three types of costs associated with onsite property damage from an accident: cleanup and decontamination, long-term replacement power, and repair and refurbishment. The value of avoiding each of these types of costs must be considered when evaluating risk. Total averted onsite property damage costs are the sum of the three types of costs. Calculation of onsite property damage costs is detailed in the sections that follow.

Averted Cleanup and Decontamination Costs 4.4.1.

The estimated cleanup cost for severe accidents was defined in Reference 2, Section 5.7.6.1, to be $1. ×109 /accident (undiscounted). Using the value of $1.5×109 /event and assuming, as in Reference 2, that the total sum is paid in equal installments over a 10-year period, the present value of those ten payments for cleanup and decontamination costs for the cleanup period can be calculated as follows:

PVCD = CCD/m × { �1 − e(−rm)� r⁄ } (8)

Where:

PVCD = net present value of cleanup and decontamination for a single event (dollars) CCD = total undiscounted cost for single accident with constant-year basis (dollars) r = real discount rate (7% per year) m = years over which long-term doses accrue (10 years)

PVCD = (($1.5×109 /event) / (10 years)) × ((1 – e – (0.07 × 10)) / 0.07)

= $1.0787×109

The present value of the costs over the cleanup period must be considered over the period of plant life. The net present value of averted cleanup costs over the plant life can be calculated using the following equation:

UCD = (𝐹𝐴 − 𝐹𝑆) × PVCD × [1 − e(−rtf)] r⁄ (9)

Where:

UCD = present value of averted onsite cleanup costs (dollars) FS = baseline accident frequency (events per year from Tables 1a and 1b) FA = accident frequency after mitigation (0 events per year) r = real discount rate (7% per year) tf = years remaining until end of plant life (60 years)

Using the values given above, UCD is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

4.4.1.1. UCD for At-Power Internal Events

UCD(IE) = (1.31×10-6 events per year – 0) × ($1.0787×109) × (1 – e – (0.07 × 60)) / (0.07 per year)

=$19,884


KEPCO & KHNP 12

Non-Proprietary

4.4.1.2. UCD for At-Power Internal Flooding Events

UCD (Fld) = (4.24×10-7 events per year – 0) × ($1.0787×109) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $6,436

4.4.1.3. UCD for At-Power Internal Fire Events

UCD (Fire) = (2.07×10-6 events per year – 0) × ($1.0787×109) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $31,419

4.4.1.4. UCD for LPSD Internal Events

UCD (SDIE) = (2.91×10-6 events per year – 0) × ($1.0787×109) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $44,169

4.4.1.5. UCD for LPSD Flooding Events

UCD (SDFld) = (1.84×10-8 events per year – 0) × ($1.0787×109) × (1 – e – (0.07 × 60)) / (0.07 per year)

= $279

4.4.1.6. UCD for LPSD Fire Events

UCD (SDFire) = (1.74×10-6 events per year – 0) × ($1.0787×109) × (1 – e – (0.07 × 60)) / (0.07 per year)

=$26,410

Averted Replacement Power Costs 4.4.2.

Replacement power costs, URP, are an additional contributor to onsite costs and can be calculated in accordance with Reference 2, Section 5.7.6.2. Since replacement power will be needed for the time period following a severe accident until the end of the expected generating plant life, long-term power replacement calculations have been used. APR1400 is expected to have a net electrical output of 1400 MWe.

Replacement power cost calculations performed in Reference 2 are based on the 910 MWe reference plant. In applying the methodology used in Reference 2 to the APR1400 design, the equation was scaled for the 1400 MWe output of APR1400 plant. For discount rates between 5 and 10 percent, Reference 2 recommends that the present value of replacement power be calculated as follows:

PVRP = �$1.2𝑥108𝑅𝑅𝑅𝑅𝑅 𝑃𝑃𝑃𝑅𝑃

910𝑀𝑀𝑅𝑟

� × �1 − e(−rtf)�2

r⁄ (10)

Where:

PVRP = net present value of replacement power for a single event (dollars) Rated power = 1400 MWe


KEPCO & KHNP 13

Non-Proprietary

r = real discount rate (7% per year) tf = years remaining until end of plant life (60 years)

Using the values given above:

PVRP = (1.2x108 × (1400 MWe / 910 MWe)) / (0.07 per year) × (1 – e – (0.07 × 60))2

= $2.559 x109

The replacement power costs “PVRP” ($2.559 x109) was adjusted to 2013 dollars by applying a ratio of the average Bureau of Labor Statistics (BLS) Producer Price Index for Electric Power from 1993 and 2013. The Producer Price Index for Electric Power for 2013 is 193.3, and the Producer Price Index for Electric Power for 1993 is 128.6 (Reference 3). The 2013 dollars scaling factor is calculated as 193.3/128.6, which equals 1.50.

The replacement power costs “PVRP” was also adjusted to reflect the true need for replacement capacity availability based on current operations. A more realistic capacity factor of 95 percent is used in lieu of the suggested 60–65 percent range reported in Reference 2. This adjustment was applied as a simple multiplier derived by dividing 95 percent by 60 percent to get a value of 1.58.

PVRP = $2.559x109 × (1.50) × (1.58)

= $6.065x109

To obtain the expected costs of a single event over the plant life, the following equation is used:

URP = [𝐹𝑆 − 𝐹𝐴] × PVRP × [1 − e(−rtf)]2 r⁄ (11)

Where:

URP = net present value of replacement power over life of facility (dollars) FS = baseline accident frequency (events per year from Tables 1a and 1b) FA = accident frequency after mitigation (0 events per year) PVRP = net present value of replacement power for a single event (dollars) r = real discount rate (7% per year) tf = years remaining until end of plant life (60 years)

Using the values given above, URP is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

4.4.2.1. URP for At-Power Internal Events

URP(IE) = (1.31×10-6 events per year – 0) × ($6.065×109) × (1 – e – (0.07 × 60))2 / (0.07 per year)

=$110,124

4.4.2.2. URP for At-Power Internal Flooding Events

URP (Fld) = (4.24×10-7 events per year – 0) × ($6.065×109) × (1 – e – (0.07 × 60))2 / (0.07 per year)

= $35,643


KEPCO & KHNP 14

Non-Proprietary

4.4.2.3. URP for At-Power Internal Fire Events

URP (Fire) = (2.07×10-6 events per year – 0) × ($6.065×109) × (1 – e – (0.07 × 60))2 / (0.07 per year)

= $174,012

4.4.2.4. URP for LPSD Internal Events

URP (SDIE) = (2.91×10-6 events per year – 0) × ($6.065×109) × (1 – e – (0.07 × 60))2 / (0.07 per year)

= $244,626

4.4.2.5. URP for LPSD Flooding Events

URP (SDFld) = (1.84×10-8 events per year – 0) × ($6.065×109) × (1 – e – (0.07 × 60))2 / (0.07 per year)

= $1,547

4.4.2.6. URP for LPSD Fire Events

URP (SDFire) = (1.74×10-6 events per year – 0) × ($6.065×109) × (1 – e – (0.07 × 60))2 / (0.07 per year)

=$146,271

Averted Repair and Refurbishment Costs 4.4.3.

It is assumed that the plant would not be repaired or refurbished; therefore, these costs are zero.

Total Averted Onsite Costs 4.4.4.

Total averted onsite cost (AOSC) is the sum of cleanup and decontamination costs, replacement power costs, and repair and refurbishment costs. Total averted onsite costs are calculated as follows:

AOSC = UCD + URP + 0 (12)

Total averted onsite costs are calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

4.4.4.1. AOSC for At-Power Internal Events

AOSC(IE) = $19,884 + $110,124

=$130,008

4.4.4.2. AOSC for At-Power Internal Flooding Events

AOSC (Fld) = $6,436 + $35,643


KEPCO & KHNP 15

Non-Proprietary

= $42,079

4.4.4.3. AOSC for At-Power Internal Fire Events

AOSC (Fire) = $31,419 + $174,012

= $205,431

4.4.4.4. AOSC for LPSD Internal Events

AOSC (SDIE) = $44,169 + $244,626

= $288,795

4.4.4.5. AOSC for LPSD Flooding Events

AOSC (SDFld) = $279 + $1,547

= $1,826

4.4.4.6. AOSC for LPSD Fire Events

AOSC (SDFire) = $26,410 + $146,271

= $172,681

4.4.4.7. Total AOSC

AOSC Tot = AOSC(IE) + AOSC(Fld) + AOSC(Fire) + AOSC(SDIE) + AOSC(SDFld) + AOSC(SDFire)

= $130,008 + $42,079 + $205,431 + $288,795 + $1,826 + $172,681

= $840,820

4.5. Cost Enhancement

The cost of enhancement (COE) is used when measures are taken to reduce risk. By definition, such measures are taken at the beginning of any period considered, so no discounting is performed for the COE. For baseline risk, no measures have been taken to reduce risk, so:

COE = $0

4.6. Total Unmitigated Baseline Risk

As described in Section 4, the total present worth net value of public risk is calculated according to the following formula:


Using the values calculated in Sections 4.1 to 4.5, total baseline risk is calculated:


KEPCO & KHNP 16

Non-Proprietary

NPV = ($76,794 + $104,687 + $4,216 + $840,820) – $0

= $1,026,517

This value can be viewed as the maximum risk benefit attainable if all core damage scenarios from internal events are eliminated over the the 60-year plant life.


KEPCO & KHNP 17

Non-Proprietary

5. IDENTIFICATION OF SAMDAS

The list of SAMDA items evaluated for the APR1400 design is given in Table 4.

The first source used to identify SAMDA items is NEI-05-01. Generic industry SAMDAs that are to be considered are the 153 items that are identified in Table 14 of NEI 05-01 (Reference 1).

The second source used to identify SAMDA items is APR1400 design-specific SAMDA items that be decided through expert panel for APR1400 SAMDA. The 29 items for APR1400 design-specific SAMDA are described in Table 4.

The third source used to identify SAMDA items is the result of PRA for APR1400. Evaluation of APR1400-specific items related to the PRA results began with an importance analysis of the core damage cutsets generated in Reference 5. Each basic event with a Fussell-Vesely importance of greater than 0.5 percent was reviewed to identify any potential SAMDAs. These included 118 basic events for at-power internal events, 64 for at-power internal flooding events, 92 for at-power fire events, 73 for LPSD internal events, 53 for LPSD internal flooding events, and 141 for LPSD fire events. Basic events, such as complementary events or constants, have no physical meaning are identified and can be excluded as having no impact on the SAMDA analysis. A listing of the basic events, their importance, and their disposition with respect to SAMDA items is given in Tables 5a through 5f.

In addition to the basic event importance review, the top 100 cutsets for each analysis were reviewed to identify any basic events that were not included as part of the importance analysis review. Basic events identified in the top 100 cutsets that are not included as part of the importance analysis review are shown in Tables 6a through 6f.


KEPCO & KHNP 18

Non-Proprietary

6. SAMDA SCREENING

The initial list of potential SAMDAs was developed from a generic list of sources related to many plant designs. Some of the items on the list were identified relatively recently, while others were identified some time ago. Given the wide diversity in age and sources of the potential SAMDAs, an initial screening is performed to identify the subset of potential SAMDAs that warranted a detailed evaluation.

Potential SAMDAs to be examined in detail are identified by exception. That is, a screening process is used to remove potential SAMDAs from consideration. Any potential SAMDAs not screened undergo more detailed evaluation.

As described in Reference 1, SAMDA items can be screened for several reasons. First, items were screened that were not applicable to the APR1400. For example, some items are associated with specific equipment that is not present in the APR1400 design. Items screened as not applicable are indicated as “Not Applicable” in the “Qualitative Screening” column of Table 4.

Next, items were identified that were effectively implemented in the APR1400 design. Items screened as effectively implemented are indicated by “Already implemented” in the “Qualitative Screening” column of Table 4. The reason for screening as “Already implemented” is provided in Table 4.

Other SAMDA items were screened because they would not be feasible to implement. An item would not be feasible if the cost to implement the SAMDA clearly would exceed the maximum benefit possible (calculated in Section 4.6). Items screened as infeasible to implement are indicated with “Excessive Implementation Cost” in the “Qualitative Screening” column of Table 4.

Reference 1 allows items to be screened if they would be of low benefit. An item is of low benefit if it is from a non-risk-significant system and a change in reliability would have negligible impact on the risk profile. As this analysis is for the APR1400 design certification, any items listed as potentially being of low benefit are indicated as needing further evaluation or potentially of very low benefit in the “Qualitative Screening” column of Table 4. This assumption is based on engineering judgment and experience with other SAMDA analyses. The reason for screening as of very low benefit is provided in Table 4.

Finally, one SAMDA can be “Combined” with others, per the guidelines of Reference 1. SAMDA 151 is described as “Increase training and operating experience feedback to improve operator response.” As this analysis is for the APR1400 design certification, SAMDAs regarding operator actions are designated as N/A since enhancements due to procedures and training are not applicable to the design certification stage of plant development. For this analysis, all other items not screened as above were retained in Table 4. The benefit and cost evaluations in the sections that follow then examine the impacts of the items. If appropriate, the items are combined during the benefit or cost evaluations. When items were combined as providing the same benefit, a note indicating which were analyzed together is provided in Table 4.

Items not screened are indicated as needs further evaluation in the “Qualitative Screening” column of Table 4.

In addition, 23 items of APR1400 design-specific SAMDA is screened out as “Already Implemented,” and 6 items of APR1400 design-specific SAMDA is screened out as “N/A.” The qualitative screening for the 29 items is described in Table 4.


KEPCO & KHNP 19

Non-Proprietary

TS

7. SAMDA BENEFIT EVALUATION

Each of the potential SAMDAs not screened was evaluated to determine the potential benefits that could be achieved if implemented. In evaluating the benefits, a precisely described modification was not necessarily considered because exact design details would only be defined once an option was chosen. Rather, SAMDA benefit evaluation was performed using bounding techniques to estimate any risk reduction that would be possible. For example, evaluation of the SAMDA to install an additional component cooling water pump bounded the risk reduction possible by assuming that implementation of the SAMDA would entirely eliminate the unavailability of component cooling water pumps.

Evaluation of potential benefits would be performed using the methodology described in Reference 1 and, in general, would be performed as follows. First, the potential reduction in CDF, if any, was estimated. Next, the reduction in source term release was estimated. Finally, the potential benefit to offsite consequences was determined and presented in monetary terms.

Based on the information provided in Sections 4 and Tables 4, 5a through 5f, and 6a through 6f, the total maximum cost reduction calculated for any of the important basic events (FV > 0.5 percent) would be much lower than described in Tables 4, 5a through 5f, and 6a through 6f, because in reality, not all offsite consequences would be eliminated. Therefore, a design change would be expected to cost more than this amount and, as a result, not provide a positive benefit.

The following sections describe the costs vs. benefits of the important basic events and why no further SAMDA cost-benefit evaluation is needed. The important basic events are grouped by the associated component to contribute to an overall maximum benefit. For components that can be considered identical, like emergency diesel generators (EDGs) or identical system pumps, the total of the component benefits is evaluated for overall maximum benefit.

7.1. Emergency Diesel Generator Events

EDG DG001A Events 7.1.1.


KEPCO & KHNP 20

Non-Proprietary

TS

TS

TS

EDG DG001B Events 7.1.2.

EDG DG001C Events 7.1.3.


KEPCO & KHNP 21

Non-Proprietary

TS

TS

TS

TS

EDG DG001D Events 7.1.4.

Load Sequencer Events 7.1.5.

Total EDG Event Summary 7.1.6.


KEPCO & KHNP 22

Non-Proprietary

TS

TS

TS

7.2. Alternate AC Diesel Generator Events

AAC DG Events 7.2.1.

AAC DG Fuel Oil Pump PP02 Events 7.2.2.


KEPCO & KHNP 23

Non-Proprietary

TS

TS

TS

7.3. Auxiliary Feedwater Events

AFW Isolation Valve MOV-45 Events 7.3.1.

AFW Isolation Valve MOV-46 Events 7.3.2.

Turbine-Driven AFW Pump PP01A Events 7.3.3.


KEPCO & KHNP 24

Non-Proprietary

TS

TS

TS

Turbine-Driven AFW Pump PP01B Events 7.3.4.

Motor-Driven AFW Pump PP02A Events 7.3.5.


KEPCO & KHNP 25

Non-Proprietary

TS

TS

TS

TS

Motor-Driven AFW Pump PP02B Events 7.3.6.

Startup FW Pump PP07 Events 7.3.7.

Total AFW Isolation Valve Event Summary 7.3.8.


KEPCO & KHNP 26

Non-Proprietary

TS

TS

TS

TS

Total Turbine-Driven AFW Pump Event Summary 7.3.9.

Total Motor-Driven AFW Pump Event Summary 7.3.10.

7.4. Barrier Failure Events

Barrier Unavailability Between F078-AGAC and F078-AGAD Event 7.4.1.


KEPCO & KHNP 27

Non-Proprietary

TS

TS

TS

TS

Barrier Failure Between F120-AGAC and F120-AGAD Event 7.4.2.

Total Barrier Failure Event Summary 7.4.3.

7.5. Component Cooling Water Events

CCW Pump PP02A Events 7.5.1.


KEPCO & KHNP 28

Non-Proprietary

TS

TS

TS

TS

CCW Pump PP02B Events 7.5.2.

Containment Spray Heat Exchanger HE01A CCW Inlet Valve MOV-97 7.5.3.

Containment Spray Heat Exchanger HE01B CCW Inlet Valve MOV-98 7.5.4.


KEPCO & KHNP 29

Non-Proprietary

TS

TS

TS

Total CCW Pump Event Summary 7.5.5.

Total Containment Spray Heat Exchanger CCW Inlet Valve Event Summary 7.5.6.


KEPCO & KHNP 30

Non-Proprietary

TS

TS

TS

7.6. Containment Spray Events

Containment Spray Pump PP01A Events 7.6.1.

Containment Spray Pump PP01B Events 7.6.2.

Containment Spray Isolation Valve MOV-003 Events 7.6.3.


KEPCO & KHNP 31

Non-Proprietary

TS

TS

TS

TS

Containment Spray Isolation Valve MOV-004 Events 7.6.4.

Total Containment Spray Pump Event Summary 7.6.5.

Total Containment Spray Isolation Valve Event Summary 7.6.6.


KEPCO & KHNP 32

Non-Proprietary

TS

TS

TS

7.7. Charging Pump Events

Charging Pump PP03 Events 7.7.1.

7.8. 125 Vdc Power Events

125 Vdc Battery BT01A Events 7.8.1.


KEPCO & KHNP 33

Non-Proprietary

TS

TS

TS

125 Vdc Battery BT01B Events 7.8.2.

125 Vdc Battery BT01C Events 7.8.3.

125 Vdc Battery BT01D Events 7.8.4.


KEPCO & KHNP 34

Non-Proprietary

TS

TS

TS

TS

Total 125 Vdc Battery Event Summary 7.8.5.

7.9. 120 Vac Power Events

120 Vac Inverter IN01A 7.9.1.

120 Vac Inverter IN01B 7.9.2.


KEPCO & KHNP 35

Non-Proprietary

TS

TS

TS

120 Vac Inverter IN01C 7.9.3.

120 Vac Inverter IN01D 7.9.4.


KEPCO & KHNP 36

Non-Proprietary

TS

TS

TS

TS

Total 120 Vac Inverter Event Summary 7.9.5.

7.10. Grid Collapse on Turbine Trip Events

7.11. AC Power Events

Standby Auxiliary Transformer 02M Events 7.11.1.


KEPCO & KHNP 37

Non-Proprietary

TS

TS

TS

TS

Standby Auxiliary Transformer 02N Events 7.11.2.

1E 4.16kV Switchgear SW01A Feed PCB SW01A-A2 from SAT Events 7.11.3.

1E 4.16kV Switchgear SW01B Feed PCB SW01B-A2 from SAT Events 7.11.4.


KEPCO & KHNP 38

Non-Proprietary

TS

TS

TS

1E 4.16kV Switchgear SW01C Feed PCB SW01C-A2 from SAT Events 7.11.5.

1E 4.16kV Switchgear SW01A Feed PCB SW01A-H2 from UAT Events 7.11.6.


KEPCO & KHNP 39

Non-Proprietary

TS

TS

TS

1E 4.16kV Switchgear SW01B Feed PCB SW01B-H2 from UAT Events 7.11.7.

1E 4.16kV Switchgear SW01C Feed PCB SW01C-C2 from UAT Events 7.11.8.

1E 4.16kV Switchgear SW01D Feed PCB SW01D-G2 from UAT Events 7.11.9.


KEPCO & KHNP 40

Non-Proprietary

TS

TS

TS

TS

1E 4.16kV Switchgear SW01A Feed PCB SW01A-E2 from EDG Events 7.11.10.

1E 4.16kV Switchgear SW01C Feed PCB SW01C-E2 from AAC TG Events 7.11.11.

1E 4.16kV Switchgear SW01C Feed PCB SW01C-F2 from EDG Events 7.11.12.


KEPCO & KHNP 41

Non-Proprietary

TS

TS

TS

N1E 4.16kV PNS Switchgear Feed PCB SW03N-F2 from AAC Switchgear Events 7.11.13.

Primary Loop Controller LX06A Events 7.11.14.


KEPCO & KHNP 42

Non-Proprietary

TS

TS

TS

TS

Primary Loop Controller LX03C Events 7.11.15.

Standby Auxiliary Transformer Event Summary 7.11.16.

4.16kV Circuit Breaker Event Summary 7.11.17.


KEPCO & KHNP 43

Non-Proprietary

TS

TS

TS

TS

Primary Loop Controller Event Summary 7.11.18.

7.12. Pilot-Operated Safety Relief Valve Events

Pilot-Operated Safety Relief Valve V200 Events 7.12.1.



KEPCO & KHNP 44

Non-Proprietary

TS

TS

TS




KEPCO & KHNP 45

Non-Proprietary

TS

TS

TS

TS

Total POSRV Event Summary 7.12.5.

7.13. Seal Failure Events

7.14. Station Blackout due to Turbine-Driven Auxiliary Feedwater Pump Events

7.15. Chiller/Cooler Events

Safety Injection Pump Room Cubicle Cooler HV11A Events 7.15.1.


KEPCO & KHNP 46

Non-Proprietary

TS

TS

TS

TS

Safety Injection Pump Room Cubicle Cooler HV11B Events 7.15.2.

Essential Chilled Water Chiller CH01A Events 7.15.3.

Essential Chilled Water Chiller CH01B Events 7.15.4.


KEPCO & KHNP 47

Non-Proprietary

TS

TS

TS




KEPCO & KHNP 48

Non-Proprietary

TS

TS

TS




KEPCO & KHNP 49

Non-Proprietary

TS

TS

TS



Emergency Diesel Generator Room Cubicle Cooler HV12A Events 7.15.11.


KEPCO & KHNP 50

Non-Proprietary

TS

TS

TS

TS

Emergency Diesel Generator Room Cubicle Cooler HV12B Events 7.15.12.

Emergency Diesel Generator Room Cubicle Cooler HV12C Events 7.15.13.

Emergency Diesel Generator Room Cubicle Cooler HV12D Events 7.15.14.


KEPCO & KHNP 51

Non-Proprietary

TS

TS

TS

TS

Emergency Diesel Generator Room Cubicle Cooler HV13A Events 7.15.15.

Emergency Diesel Generator Room Cubicle Cooler HV13B Events 7.15.16.

Emergency Diesel Generator Room Cubicle Cooler HV13C Events 7.15.17.


KEPCO & KHNP 52

Non-Proprietary

TS

TS

TS

TS

Emergency Diesel Generator Room Cubicle Cooler HV13D Events 7.15.18.

Shutdown Cooling Pump 02A Room Cubicle Cooler HV16A Events 7.15.19.

Shutdown Cooling Pump 02B Room Cubicle Cooler HV16B Events 7.15.20.


KEPCO & KHNP 53

Non-Proprietary

TS

TS

TS

Motor-Driven AFW Pump Room A Cubicle Cooler HV33A Events 7.15.21.

Motor-Driven AFW Pump Room B Cubicle Cooler HV33B Events 7.15.22.


KEPCO & KHNP 54

Non-Proprietary

TS

TS

TS

TS

Total SI Pump Room Cubicle Cooler Event Summary 7.15.23.

Total ECW Chiller Event Summary 7.15.24.

Total EDG Room Cubicle Cooler Event Summary 7.15.25.


KEPCO & KHNP 55

Non-Proprietary

TS

TS

TS

TS

Total Shutdown Cooling Pump Room Cubicle Cooler Event Summary 7.15.26.

Total Motor-Driven AFW Pump Room Cubicle Cooler Event Summary 7.15.27.

7.16. Safety Injection Events

SI Pump PP02 Events 7.16.1.


KEPCO & KHNP 56

Non-Proprietary

TS

TS

TS

TS

SI Pump PP03 Suction Valve VV-130 Events 7.16.2.

SI Pump PP03 Discharge Valve VV-435 Events 7.16.3.

SI Pump PP01 Injection Line MOV-636 Events 7.16.4.


KEPCO & KHNP 57

Non-Proprietary

TS

TS

TS

In-Containment Refueling Water Storage Tank Sump Events 7.16.5.

7.17. Essential Service Water Events

ESW Pump PP02A Events 7.17.1.


KEPCO & KHNP 58

Non-Proprietary

TS

TS

TS

TS

ESW Pump PP02B Events 7.17.2.

ESW Filter FT01A Events 7.17.3.

Total ESW Pump Events Summary 7.17.4.


KEPCO & KHNP 59

Non-Proprietary

TS

TS

TS

7.18. Essential Chilled Water System Events

ECW Pump PP02A Events 7.18.1.

ECW Pump PP02B Events 7.18.2.


KEPCO & KHNP 60

Non-Proprietary

TS

TS

TS

TS

ECW Pump PP05A Events 7.18.3.

Total ECW Pump Event Summary 7.18.4.

7.19. Turbine-Driven Auxiliary Feedwater Pump Steam Supply Valve Events

Turbine-Driven AFW Pump Steam Supply Valve AOV-109 Events 7.19.1.


KEPCO & KHNP 61

Non-Proprietary

TS

TS

TS

TS

Turbine-Driven AFW Pump Steam Supply Valve AOV-110 Events 7.19.2.

Total Turbine-Driven AFW Pump Steam Supply Valve Event Summary 7.19.3.

7.20. Scram due to Mechanical Failure Events


KEPCO & KHNP 62

Non-Proprietary

TS

TS

TS

7.21. Group Controller GC1-PM3 Events

Group Controller Channel A GC-1 Output Events 7.21.1.

Group Controller Channel B GC-1 Output Events 7.21.2.


KEPCO & KHNP 63

Non-Proprietary

TS

TS Total Group Controller GC-1 Output Channel Events 7.21.3.

7.22. Other Events from Top 100 Cutsets


KEPCO & KHNP 64

Non-Proprietary

8. SAMDA COST EVALUATION

Based on the information detailed in Section 7 as well as that provided in Section 4 and Tables 4, 5, and 6, the total maximum benefit calculated for improving the equipment associated with the important basic events (FV > 0.5 percent) would be small and much lower than the cost of any plant design change to improve performance of the component. Therefore, a design change would not provide a positive benefit.

As a result, no further SAMDA cost evaluation is needed.


KEPCO & KHNP 65

Non-Proprietary

9. SAMDA COST-BENEFIT EVALUATION

As described in Sections 7 and 8, all design changes to reduce risk would provide small or negligible benefit and the cost of any associated design change would greatly exceed any potential benefit. Therefore, no specific cost-benefit calculations are necessary.


KEPCO & KHNP 66

Non-Proprietary

10. SENSITIVITY ANALYSIS (3 PERCENT DISCOUNT RATE)

The parameters that influence the cost-benefit analyses of the SAMDA evaluations were examined to determine if a change in value for one of the parameters would change the conclusions of the evaluation. Equations for each of the four types of averted costs (see Sections 4.1 to 4.4) contain a term for the real discount rate and evaluation period. Therefore, a change in either of those terms would have a direct impact on the averted costs calculated.

Reference 1 recommends using a 7 percent discount rate for cost-benefit analyses and suggests that a 3 percent discount rate should be used for sensitivity analyses on the maximum benefit and unscreened SAMDAs to indicate the sensitivity of the results to the choice of discount rate. This sensitivity case is described below.

The methodology of Reference 1 determines the present worth net value of public risk according to the following formula:


Where:

NPV = present value of current risk ($) APE = present value of averted public exposure ($) AOC = present value of averted offsite property damage costs ($) AOE = present value of averted occupational exposure ($) AOSC = present value of averted onsite costs ($) COE = cost of any enhancement implemented to reduce risk ($)

The derivation of each of these costs is described in the subsections below. All equations used in the subsections below are taken from Reference 2, which is the basis for the equations in Reference 1.

The following specific values were used for various terms in the analyses:

Present Worth

The present worth was determined by:

PW = [1 − e(−rt)] r⁄ (2)

Where:

r is the discount rate = 3 percent per year (assumed throughout these analyses)

t is the years remaining until end of plant life = 60 years

PW is the present worth of a string of annual payments of one dollar = $27.823

Dollars per REM

The conversion factor used for assigning a monetary value to onsite and offsite exposures was $2,000/person-rem averted. This is consistent with the NRC’s regulatory analysis guidelines presented in and used throughout Reference 1.


KEPCO & KHNP 67

Non-Proprietary

10.1. Averted Public Exposure

Expected offsite doses from the internal events PRA accident sequences are presented in Tables 2a through 2f. Costs associated with these doses were calculated using the following equation:

APE = (𝐹𝑆𝐷𝑃𝑆 − 𝐹𝐴𝐷𝑃𝐴) × 𝑅 × [1 − e(−rtf)] r⁄ (3)

Where:

APE = present value of averted public exposure ($) R = monetary equivalent of unit dose ($2,000/person-rem) FS = baseline accident frequency (events per year from Tables 2a through 2f) FA = accident frequency after mitigation (0 events per year) FSDPS = baseline accident offsite frequency (person-rem per year from Tables 2a through 2f) FADPA = accident offsite dose frequency after mitigation (0 person-rem per year) r = real discount rate (3 percent per year) tf = years remaining until end of plant life (60 years)

Using the values given above, APE is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

APE for At-Power Internal Events 10.1.1.

APE(IE) = (5.05×10-1 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.03×60))/(0.03 per year))

= $28,101

APE for At-Power Internal Flooding Events 10.1.2.

APE(Fld) = (7.89×10-2 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.03×60))/(0.03 per year))

= $4,390

APE for At-Power Internal Fire Events 10.1.3.

APE(Fire) = (7.11×10-1 person-rem per year – 0)×($2,000/person-rem)×((1 – e – (0.03×60))/(0.03 per year))

= $39,564

APE for LPSD Internal Events 10.1.4.

APE(SDIE) = (6.51×10-1 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.03×60))/(0.03 per year))

= $36,226

APE for LPSD Flooding Events 10.1.5.

APE(SDFld) = (3.29×10-2 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.03×60))/(0.03 per year))


KEPCO & KHNP 68

Non-Proprietary

= $1,831

APE for LPSD Fire Events 10.1.6.

APE(SDFire) = (7.05×10-1 person-rem per year – 0)×($2,000/person-rem)×((1 – e– (0.03×60))/(0.03 per year))

= $41,735

Total APE 10.1.7.

APETot = APE(IE) + APE(Fld) + APE(Fire) + APE(SDIE) + APE(SDFld) + APE(SDFire)

= $28,101 + $4,390 + $39,564 + $36,226 + $1,831 + $41,735

= $151,847

10.2. Averted Public Offsite Property Damage Costs

Annual expected offsite economic risk is shown in Tables 3a through 3f. The costs associated with AOC were calculated using the following equation:

AOC = (𝐹𝑆𝐷𝐷𝑆 − 𝐹𝐴𝐷𝐷𝐴) × [1 − e(−rtf)] r⁄ (4)

Where:

AOC = present value of averted offsite property damage costs ($)

FSDDS = baseline accident frequency x property damage (cost per year from Tables 3a through 3f)

FADDA = accident frequency x property damage after mitigation (0 events per year)

r = real discount rate (3 percent per year)

tf = years remaining until end of plant life (60 years)

Using the values given above, AOC is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

AOC for At-Power Internal Events 10.2.1.

AOC(IE) = ($1,391 per year – 0) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $38,697

AOC for At-Power Internal Flooding Events 10.2.2.

AOC(Fld) = ($196 per year – 0) × (1 – e – (0.03 × 60)) / (0.03 per year)


KEPCO & KHNP 69

Non-Proprietary

= $5,461

AOC for At-Power Internal Fire Events 10.2.3.

AOC(Fire) = ($1,926 per year – 0) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $53,579

AOC for LPSD Internal Events 10.2.4.

AOC(SDIE) = ($1,822 per year – 0) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $50,200

AOC for LPSD Flooding Events 10.2.5.

AOC(SDFld) = ($74 per year – 0) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $2,058

AOC for LPSD Fire Events 10.2.6.

AOC(SDFire) = ($2,049 per year – 0) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $57,004

Total AOC 10.2.7.

AOCTot = AOC(IE) + AOC(Fld) + AOC(Fire) + AOC(SDIE) + AOC(SDFld) + AOC(SDFire)

= $38,697 + $5,461 + $53,579 + $50,200 + $2,058 + $57,004

= $206,999

10.3. Averted Occupational Exposure

There are two types of occupational exposure due to accidents: immediate and long-term. Immediate exposure occurs at the time of the accident and during the immediate management of the emergency. Long-term exposure is associated with the cleanup and refurbishment or decommissioning of the damaged facility. The value of avoiding both types of exposure must be considered when evaluating risk.

The occupational exposure associated with severe accidents was assumed to be 23,300 person-rem/accident. This value includes a short-term component of 3,300 person-rem/accident and a long-term component of 20,000 person-rem/accident. These estimates are consistent with the best-estimate values presented in Reference 2. In calculating base risk, the accident-related onsite exposures were calculated using the best-estimate exposure components applied over the onsite cleanup period. For onsite cleanup, the accident-related onsite exposures were calculated over a 10-year cleanup period. Costs associated with immediate dose, long-term dose, and total dose are calculated below for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events.


KEPCO & KHNP 70

Non-Proprietary

Averted Immediate Occupational Exposure Costs 10.3.1.

Per the guidance of Reference 1, costs associated with immediate occupational doses from an accident were calculated using the following equation:

𝑊𝐼𝐼 = (𝐹𝑆𝐷𝐼𝐼𝑆 − 𝐹𝐴𝐷𝐼𝐼𝐴) × 𝑅 × [1 − e(−rtf)] r⁄ (5)

Where:

WIO = present value of averted immediate occupational exposure ($)

FS = baseline accident frequency (events per year from Tables 1a and 1b)

FA = accident frequency after mitigation (0 events per year)

DIOS = baseline expected immediate onsite dose (3,300 person-rem/event)

DIOA = expected occupational exposure after mitigation (3,300 person-rem/event)

R = monetary equivalent of unit dose ($2,000/person-rem)

r = real discount rate (3 percent per year)

tf = years remaining until end of plant life (60 years)

Using the values given above, WIO is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

10.3.1.1. WIO for At-Power Internal Events

WIO(IE) = ((1.31×10-6 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.03 × 60)) / (0.03 per year)

=$241

10.3.1.2. WIO for At-Power Internal Flooding Events

WIO (Fld) = ((4.24×10-7 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $78

10.3.1.3. WIO for At-Power Internal Fire Events

WIO (Fire) = ((2.07×10-6 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $380


KEPCO & KHNP 71

Non-Proprietary

10.3.1.4. WIO for LPSD Internal Events

WIO (SDIE) = ((2.91×10-6 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $534

10.3.1.5. WIO for LPSD Flooding Events

WIO (SDFld) = ((1.84×10-8 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $3

10.3.1.6. WIO for LPSD Fire Events

WIO (SDFire) = ((1.74×10-6 events per year) × (3,300 person-rem/event) – 0) × ($2,000/person-rem) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $320

Averted Long-Term Occupational Exposure Costs 10.3.2.

Per the guidance of Reference 1, costs associated with long-term occupational doses from an accident were calculated using the following equation:

𝑊𝐿𝐿𝐼 = (𝐹𝑆𝐷𝐿𝐿𝐼𝑆 − 𝐹𝐴𝐷𝐿𝐿𝐼𝑆) × 𝑅 × [1 − e(−rtf)] r⁄ × [1 − e(−rm)] r⁄ 𝑚 (6)

Where:

WLTO = present value of averted long-term occupational exposure ($) FS = baseline accident frequency (events per year from Tables 1a and 1b) FA = accident frequency after mitigation (0 events per year) DLTOS = baseline expected long-term onsite dose (20,000 person-rem/event) DLTOA = expected occupational exposure after mitigation (20,000 person-rem/event) R = monetary equivalent of unit dose ($2,000/person-rem) r = real discount rate (3 percent per year) m = years over which long-term doses accrue (10 years from Reference 2) tf = years remaining until end of plant life (60 years)

Using the values given above, WLTO is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

10.3.2.1. WLTO for At-Power Internal Events

WLTO(IE) = ((1.31×10-6 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.03 × 60)) / (0.03 per year) × ((1 – e – (0.03 × 10)) / ((0.03 per year) × (10 years))

=$1,260


KEPCO & KHNP 72

Non-Proprietary

10.3.2.2. WLTO for At-Power Internal Flooding Events

WLTO (Fld) = ((4.24×10-7 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.03 × 60)) / (0.03 per year) × ((1 – e – (0.03 × 10)) / ((0.03 per year) × (10 years))

= $408

10.3.2.3. WLTO for At-Power Internal Fire Events

WLTO (Fire) =((2.07×10-6 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.03 × 60)) / (0.03 per year) × ((1 – e – (0.03 × 10)) / ((0.03 per year) × (10 years))

= $1,990

10.3.2.4. WLTO for LPSD Internal Events

WLTO (SDIE) =((2.91×10-6 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.03 × 60)) / (0.03 per year) × ((1 – e – (0.03 × 10)) / ((0.03 per year) × (10 years))

= $2,798

10.3.2.5. WLTO for LPSD Flooding Events

WLTO (SDFld) =((1.84×10-8 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.03 × 60)) / (0.03 per year) × ((1 – e – (0.03 × 10)) / ((0.03 per year) × (10 years))

= $18

10.3.2.6. WLTO for LPSD Fire Events

WLTO (SDFire) =((1.74×10-6 events per year) × (20,000 person-rem/event) – 0) × ($2,000/person-rem) × ((1 – e – (0.03 × 60)) / (0.03 per year) × ((1 – e – (0.03 × 10)) / ((0.03 per year) × (10 years))

=$1,673

Total Averted Occupational Exposure Costs 10.3.3.

As described in Subsection 4.3.3, the total cost associated with averted occupational exposure, AOE, is the sum of the costs associated with averted immediate exposure and the costs associated with the averted long-term exposure, or:

AOE = WIO + WLTO (7)

Total averted onsite exposure costs are calculated below.

10.3.3.1. AOE for At-Power Internal Events

AOE(IE) = $241 + $1,260

= $1,501


KEPCO & KHNP 73

Non-Proprietary

10.3.3.2. AOE for At-Power Internal Flooding Events

AOE (Fld) = $78 + $408

= $486

10.3.3.3. AOE for At-Power Internal Fire Events

AOE (Fire) = $380 + $1,990

= $2,370

10.3.3.4. AOE for LPSD Internal Events

AOE (SDIE) = $534 + $2,798

= $3,332

10.3.3.5. AOE for LPSD Flooding Events

AOE (SDFld) = $3 + $18

= $21

10.3.3.6. AOE for LPSD Fire Events

AOE (SDFire) = $320 + $1,673

= $1,993

10.3.3.7. Total AOE

Total averted occupational exposure costs are the sum of the four individual costs calculated above or:

AOE Tot = AOE(IE) + AOE(Fld) + AOE(Fire) + AOE(SDIE) + AOE(SDFld) + AOE(SDFire)

= $1,501 + $486 + $2,370 + $3,332 + $21 + $1,993

= $9,703

10.4. Averted Onsite Costs

Reference 2 defines three types of costs associated with onsite property damage from an accident: cleanup and decontamination, long-term replacement power, and repair and refurbishment. The value of avoiding each of these types of costs must be considered when evaluating risk. Total averted onsite property damage costs are the sum of the three types of costs. Calculation of onsite property damage costs is detailed in the subsections that follow.


KEPCO & KHNP 74

Non-Proprietary

Averted Cleanup and Decontamination Costs 10.4.1.

The estimated cleanup cost for severe accidents is defined in Reference 2 as $1 ×109 /accident (undiscounted). Using the value of $1.5×109 /event and assuming, as in Reference 2, that the total sum is paid in equal installments over a 10-year period, the present value of those ten payments for cleanup and decontamination costs for the cleanup period can be calculated as follows:

PVCD = CCD/m × { �1 − e(−rm)� r⁄ } (8)

Where:

PVCD = net present value of cleanup and decontamination for a single event (dollars) CCD = total undiscounted cost for single accident with constant-year basis (dollars) r = real discount rate (3 percent per year) m = years over which long-term doses accrue (10 years)

PVCD = (($1.5×109 /event) / (10 years)) × ((1 – e – (0.03 × 10)) / 0.03)

= $1.2959 ×109

The present value of the costs over the cleanup period must be considered over the period of plant life. The net present value of averted cleanup costs over the plant life can be calculated using the following equation:

UCD = (𝐹𝐴 − 𝐹𝑆) × PVCD × [1 − e(−rtf)] r⁄ (9)

Where:

UCD = present value of averted onsite cleanup costs (dollars) FS = baseline accident frequency (events per year from Tables 1a and 1b) FA = accident frequency after mitigation (0 events per year) r = real discount rate (3 percent per year) tf = years remaining until end of plant life (60 years)

Using the values given above, UCD is calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

10.4.1.1. UCD for At-Power Internal Events

UCD(IE) = (1.31×10-6 events per year – 0) × ($1.2959×109) × (1 – e – (0.03 × 60)) / (0.03 per year)

=$47,233

10.4.1.2. UCD for At-Power Internal Flooding Events

UCD (Fld) = (4.24×10-7 events per year – 0) × ($1.2959×109) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $15,288

10.4.1.3. UCD for At-Power Internal Fire Events

UCD (Fire) = (2.07×10-6 events per year – 0) × ($1.2959×109) × (1 – e – (0.03 × 60)) / (0.03 per year)


KEPCO & KHNP 75

Non-Proprietary

= $74,636

10.4.1.4. UCD for LPSD Internal Events

UCD (SDIE) = (2.91×10-6 events per year – 0) × ($1.2959×109) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $104,922

10.4.1.5. UCD for LPSD Flooding Events

UCD (SDFld) = (1.84×10-8 events per year – 0) × ($1.2959×109) × (1 – e – (0.03 × 60)) / (0.03 per year)

= $663

10.4.1.6. UCD for LPSD Fire Events

UCD (SDFire) = (1.74×10-6 events per year – 0) × ($1.2959×109) × (1 – e – (0.03 × 60)) / (0.03 per year)

=$62,737

Averted Replacement Costs 10.4.2.

Calculation of replacement power costs, however, requires a change in the equation in Subsection 4.4.2. Instead of using the equations shown in Subsection 4.4.2 to calculate URP, Reference 2 recommends using a linear interpolation between $1.9x1010 for a discount rate of one percent and 1.2x1010 for a discount rate of 5 percent. The replacement power cost must also be adjusted to 2013 dollars and again for the more realistic capacity factor of 95 percent. As detailed in Subsection 4.4.2, two multipliers are added to account for these adjustments:

2013 dollars scaling factor multiplier: 1.50

95% capacity factor multiplier: 1.58

These multipliers are applied to equations in Subsections 10.4.2.1 through 10.4.2.6.

Replacement power costs are calculated as detailed below.

10.4.2.1. URP for At-Power Internal Events

URP(IE) = {$1.9x1010 - [($1.9x1010 - 1.2x1010) / (1% - 5%)] × (1% - 3%)} × (1400 MWe / 910 MWe) × (1.31x10-6 events per year - 0) × (1.50) × (1.58)

= $31,238 * (1.50) * (1.58)

= $74,035

10.4.2.2. URP for At-Power Internal Flooding Events

URP (Fld) = {$1.9x1010 - [($1.9x1010 - 1.2x1010) / (1% - 5%)] × (1% - 3%)} × (1400 MWe / 910 MWe) × (4.24×10-7 events per year – 0) × (1.50) × (1.58)


KEPCO & KHNP 76

Non-Proprietary

= $10,111 * (1.50) * (1.58)

= $23,963

10.4.2.3. URP for At-Power Internal Fire Events

URP (Fire) = {$1.9x1010 - [($1.9x1010 - 1.2x1010) / (1% - 5%)] × (1% - 3%)} × (1400 MWe / 910 MWe) × (2.07×10-6 events per year – 0) × (1.50) × (1.58)

= $49,362 * (1.50) * (1.58)

= $116,987

10.4.2.4. URP for LPSD Internal Events

URP (SDIE) = {$1.9x1010 - [($1.9x1010 - 1.2x1010) / (1% - 5%)] × (1% - 3%)} × (1400 MWe / 910 MWe) × (2.91×10-6 events per year – 0) × (1.50) × (1.58)

= $69,392 * (1.50) * (1.58)

= $164,460

10.4.2.5. URP for LPSD Flooding Events

URP (SDFld) = {$1.9x1010 - [($1.9x1010 - 1.2x1010) / (1% - 5%)] × (1% - 3%)} × (1400 MWe / 910 MWe) × (1.84×10-8 events per year – 0) × (1.50) × (1.58)

= $439 * (1.50) * (1.58)

= $1,040

10.4.2.6. URP for LPSD Fire Events

URP (SDFire) = {$1.9x1010 - [($1.9x1010 - 1.2x1010) / (1% - 5%)] × (1% - 3%)} × (1400 MWe / 910 MWe) × (1.74×10-6 events per year – 0) × (1.50) × (1.58)

= $41,492 * (1.50) * (1.58)

= $98,337

Averted Repair and Refurbishment Costs 10.4.3.

It is assumed that the plant would not be repaired or refurbished; therefore, these costs are zero.

Total Averted Onsite Costs 10.4.4.

Total averted onsite cost is the sum of cleanup and decontamination costs, replacement power costs, and the repair and refurbishment costs. Total averted onsite costs are calculated as follows:

AOSC = UCD + URP + 0 (12)


KEPCO & KHNP 77

Non-Proprietary

Total averted onsite costs are calculated for at-power internal events, internal flooding events, and fires, along with LPSD internal events, internal flooding events, and fire events. Each of these calculations is detailed below.

10.4.4.1. AOSC for At-Power Internal Events

AOSC(IE) = $47,233 + $74,035

= $121,268

10.4.4.2. AOSC for At-Power Internal Flooding Events

AOSC (Fld) = $15,288 + $23,963

= $39,251

10.4.4.3. AOSC for At-Power Internal Fire Events

AOSC (Fire) = $74,636 + $116,987

= $191,623

10.4.4.4. AOSC for LPSD Internal Events

AOSC (SDIE) = $104,922 + $164,460

= $269,382

10.4.4.5. AOSC for LPSD Flooding Events

AOSC (SDFld) = $663 + $1,040

= $1,703

10.4.4.6. AOSC for LPSD Fire Events

AOSC (SDFire) =$62,737 + $98,337

= $161,074

10.4.4.7. Total AOSC

AOSC Tot = AOSC(IE) + AOSC(Fld) + AOSC(Fire) + AOSC(SDIE) + AOSC(SDFld) + AOSC(SDFire)

= $121,268 + $39,251 + $191,623 + $269,382 + $1,703 + $161,074

= $784,301

10.5. Cost Enhancement


KEPCO & KHNP 78

Non-Proprietary

The cost of enhancement is used when measures are taken to reduce risk. By definition, such measures are taken at the beginning of any period considered, so no discounting is performed for the COE. For baseline risk, no measures have been taken to reduce risk, so:

COE = $0

10.6. Total Unmitigated Baseline Risk

As described in the introduction to this section, the total present worth net value of public risk is calculated according to the following formula:


Using the values calculated in Sections 10.1 to 10.5, total baseline risk is calculated as:

NPV = ($151,847 + $206,999 + $9,703 + $784,301) – $0

= $1,152,850

This value can be viewed as the maximum risk benefit attainable if all core damage scenarios from internal events are eliminated over the the 60-year plant life.


KEPCO & KHNP 79

Non-Proprietary

11. CONCLUSIONS

The analyses described in the Sections 4 through 9 analyzed the base case for the cost-benefit analyses at a 7 percent discounted rate along with the benefit associated with important contributors to risk for the APR1400 plant design. Preliminary screening eliminated SAMDA candidates from further consideration, based on inapplicability to APR1400 design features, design features that have already been incorporated into the APR1400 design, or extremely high cost of the alternatives considered.

The analysis using a 7 percent discount rate showed that no design changes to reduce risk associated with contributors to plant risk would be cost-beneficial to implement. A second baseline maximum benefit calculation using a 3 percent discount rate showed only minor variations in the calculated benefits. Therefore, it is concluded that no design changes would provide a positive cost-benefit if included in the APR1400 design.


KEPCO & KHNP 80

Non-Proprietary

12. REFERENCES

1. NEI-05-01, Rev. A, “Severe Accident Mitigation Alternatives (SAMA) Analysis – Guidance Document,” Nuclear Energy Institute, November 2005.

2. NUREG/BR-0184, “Regulatory Analysis Technical Evaluation Handbook,” U.S. Nuclear Regulatory Commission, January 1997.

3. Bureau of Labor Statistics Producer Price Index for the commodity of “Electric Power” (BLS 2013| Producer Price Index – Commodities: Series Id: WPU054| 2013/1993) (retrieved October 26, 2014).

4. 1-037-N419-301, “Level I & II Sensitivity Analysis for SAMDA,” KEPCO E&C.

5. APR1400-K-X-FS-14002, Rev. 0, APR1400 Design Control Document Tier 2, Chapter 19, “Probabilistic Risk Assessment and Severe Accident Evaluation,” KHNP, December 2014.

6. 1-035-N392-602, “Containment Event Tree Analysis,” KEPCO E&C.

7. APR1400-E-P-NR-14001-P, “PRA Summary Report,” Rev. 0, KHNP.


KEPCO & KHNP 81

Non-Proprietary

Table 1a Base Case – Source Term Category Summary for At-Power Events

STC Description STC Frequency (per year)

Internal Flood Fire 1 SGTR bypass of containment without fission product scrubbing 5.33E-08 6.21E-09 8.31E-08 2 SGTR bypass of containment with fission product scrubbing 2.41E-08 0.00E+00 0.00E+00 3 ISLOCAs without fission product scrubbing 5.31E-11 0.00E+00 0.00E+00 4 ISLOCAs with fission product scrubbing 6.49E-11 0.00E+00 0.00E+00 5 Containment isolation failure with CS 2.46E-09 7.40E-10 2.38E-08 6 Containment isolation failure without CS 1.23E-09 6.08E-09 2.60E-08 7 Containment failure before core damage with small (leak) failure of containment 1.14E-08 9.38E-10 4.36E-09 8 Containment failure before core damage with large (rupture) failure of containment 1.30E-08 1.03E-09 6.16E-09 9 Core melt arrested in the reactor vessel 3.67E-07 4.24E-08 2.83E-07 10 No containment failure after core melt 7.64E-07 3.28E-07 9.62E-07 11 Containment basemat failure 1.33E-08 5.33E-09 5.56E-07 12 Early containment failure with small (leak) failure of containment 0.00E+00 0.00E+00 0.00E+00 13 Early containment failure with large (rupture) failure of containment 1.80E-09 7.82E-10 3.71E-09 14 Late containment failure with a dry cavity, CS operation, and small (leak) failure of containment 4.28E-11 1.60E-11 2.39E-09 15 Late containment failure with a wet cavity, CS operation, and small (leak) failure of containment 0.00E+00 0.00E+00 0.00E+00 16 Late containment failure with a dry cavity, no CS, and small (leak) failure of containment 7.30E-12 3.78E-12 5.71E-10 17 Late containment failure with a wet cavity, no CS, and small (leak) failure of containment 2.70E-08 1.43E-08 3.99E-08 18 Late containment failure with a dry cavity, CS operation, and large (rupture) failure of containment 4.19E-10 1.56E-10 2.34E-08 19 Late containment failure with a wet cavity, CS operation, and large (rupture) failure of containment 4.01E-09 2.76E-09 6.51E-09 20 Late containment failure with a dry cavity, no CS, and large (rupture) failure of containment 1.19E-11 6.19E-12 9.34E-10 21 Late containment failure with a wet cavity, no CS, and large (rupture) failure of containment 2.96E-08 1.57E-08 4.38E-08

Total 1.31E-06 4.24E-07 2.07E-06


KEPCO & KHNP 82

Non-Proprietary

Table 1b Base Case – Source Term Category Summary for Low Power and Shutdown Events

STC Description STC Frequency (per year)

Internal Flood Fire 1 SGTR bypass of containment without fission product scrubbing 1.46E-08 0.00E+00 7.52E-09 2 SGTR bypass of containment with fission product scrubbing 6.62E-09 0.00E+00 3.4E-09 3 ISLOCAs without fission product scrubbing 2.79E-08 0.00E+00 2.5E-08 4 ISLOCAs with fission product scrubbing 1.78E-11 0.00E+00 9.16E-12 5 Containment isolation failure with CS 6.75E-10 0.00E+00 3.47E-10 6 Containment isolation failure without CS 1.06E-08 1.84E-08 1.31E-08 7 Containment failure before core damage with small (leak) failure of containment 3.13E-09 0.00E+00 1.61E-09 8 Containment failure before core damage with large (rupture) failure of containment 3.61E-08 0.00E+00 6.86E-08 9 Core melt arrested in the reactor vessel 1.01E-07 0.00E+00 5.18E-08 10 No containment failure after core melt 2.55E-06 0.00E+00 1.46E-06 11 Containment basemat failure 1.02E-07 0.00E+00 6.19E-08 12 Early containment failure with small (leak) failure of containment 0.00E+00 0.00E+00 0.00E+00 13 Early containment failure with large (rupture) failure of containment 4.94E-10 0.00E+00 2.54E-10 14 Late containment failure with a dry cavity, CS operation, and small (leak) failure of containment 1.18E-11 0.00E+00 6.04E-12 15 Late containment failure with a wet cavity, CS operation, and small (leak) failure of containment 0.00E+00 0.00E+00 0.00E+00 16 Late containment failure with a dry cavity, no CS, and small (leak) failure of containment 2.00E-12 0.00E+00 1.03E-12 17 Late containment failure with a wet cavity, no CS, and small (leak) failure of containment 7.41E-09 0.00E+00 3.81E-09 18 Late containment failure with a dry cavity, CS operation, and large (rupture) failure of containment 1.15E-10 0.00E+00 5.91E-11 19 Late containment failure with a wet cavity, CS operation, and large (rupture) failure of containment 1.10E-09 0.00E+00 5.66E-10 20 Late containment failure with a dry cavity, no CS, and large (rupture) failure of containment 4.08E-08 0.00E+00 3.52E-08 21 Late containment failure with a wet cavity, no CS, and large (rupture) failure of containment 8.13E-09 0.00E+00 4.18E-09

Total 2.91E-06 1.84E-08 1.74E-06


KEPCO & KHNP 83

Non-Proprietary

Table 2a Offsite Exposure by Source Term Category for At-Power Internal Events

STC Description STC

Frequency (per year)

Conditional Person-Sv

Offsite

Conditional Person-rem

Offsite

Expected Person-rem/yr Offsite

1 SGTR bypass of containment without fission product scrubbing 5.33E-08 6.34E+04 6.34E+06 3.38E-01 2 SGTR bypass of containment with fission product scrubbing 2.41E-08 3.03E+02 3.03E+04 7.30E-04 3 ISLOCAs without fission product scrubbing 5.31E-11 9.42E+04 9.42E+06 5.00E-04 4 ISLOCAs with fission product scrubbing 6.49E-11 8.00E+04 8.00E+06 5.19E-04 5 Containment isolation failure with CS 2.46E-09 3.52E+03 3.52E+05 8.66E-04 6 Containment isolation failure without CS 1.23E-09 1.79E+04 1.79E+06 2.20E-03 7 Containment failure before core damage with small (leak) failure of containment 1.14E-08 4.48E+04 4.48E+06 5.11E-02 8 Containment failure before core damage with large (rupture) failure of containment 1.30E-08 5.77E+04 5.77E+06 7.50E-02 9 Core melt arrested in the reactor vessel 3.67E-07 1.73E+01 1.73E+03 6.35E-04

10 No containment failure after core melt 7.64E-07 4.17E+01 4.17E+03 3.19E-03 11 Containment basemat failure 1.33E-08 1.94E+02 1.94E+04 2.58E-04 12 Early containment failure with small (leak) failure of containment 0.00E+00 - - - 13 Early containment failure with large (rupture) failure of containment 1.80E-09 3.31E+04 3.31E+06 5.96E-03

14 Late containment failure with a dry cavity, CS operation, and small (leak) failure of containment 4.28E-11 1.76E+03 1.76E+05 7.53E-06

15 Late containment failure with a wet cavity, CS operation, and small (leak) failure of containment 0.00E+00 - - -

16 Late containment failure with a dry cavity, no CS, and small (leak) failure of containment 7.30E-12 5.01E+03 5.01E+05 3.66E-06 17 Late containment failure with a wet cavity, no CS, and small (leak) failure of containment 2.70E-08 1.20E+02 1.20E+04 3.24E-04

18 Late containment failure with a dry cavity, CS operation, and large (rupture) failure of containment 4.19E-10 2.84E+03 2.84E+05 1.19E-04

19 Late containment failure with a wet cavity, CS operation, and large (rupture) failure of containment 4.01E-09 5.82E+03 5.82E+05 2.33E-03

20 Late containment failure with a dry cavity, no CS, and large (rupture) failure of containment 1.19E-11 7.94E+03 7.94E+05 9.45E-06 21 Late containment failure with a wet cavity, no CS, and large (rupture) failure of containment 2.96E-08 7.85E+03 7.85E+05 2.32E-02

Total 1.31E-06 5.05E-01


KEPCO & KHNP 84

Non-Proprietary

Table 2b Offsite Exposure by Source Term Category for At-Power Internal Flooding

STC Description STC



Offsite


Offsite


1 SGTR bypass of containment without fission product scrubbing 6.21E-09 6.34E+04 6.34E+06 3.94E-02 2 SGTR bypass of containment with fission product scrubbing 0.00E+00 3.03E+02 3.03E+04 0.00E+00 3 ISLOCAs without fission product scrubbing 0.00E+00 9.42E+04 9.42E+06 0.00E+00 4 ISLOCAs with fission product scrubbing 0.00E+00 8.00E+04 8.00E+06 0.00E+00 5 Containment isolation failure with CS 7.40E-10 3.52E+03 3.52E+05 2.60E-04 6 Containment isolation failure without CS 6.08E-09 1.79E+04 1.79E+06 1.09E-02 7 Containment failure before core damage with small (leak) failure of containment 9.38E-10 4.48E+04 4.48E+06 4.20E-03 8 Containment failure before core damage with large (rupture) failure of containment 1.03E-09 5.77E+04 5.77E+06 5.94E-03 9 Core melt arrested in the reactor vessel 4.24E-08 1.73E+01 1.73E+03 7.34E-05








Total 4.24E-07 7.89E-02


KEPCO & KHNP 85

Non-Proprietary

Table 2c Offsite Exposure by Source Term Category for At-Power Fire

STC Description STC



Offsite


Offsite


1 SGTR bypass of containment without fission product scrubbing 8.31E-08 6.34E+04 6.34E+06 5.27E-01 2 SGTR bypass of containment with fission product scrubbing 0.00E+00 3.03E+02 3.03E+04 0.00E+00 3 ISLOCAs without fission product scrubbing 0.00E+00 9.42E+04 9.42E+06 0.00E+00 4 ISLOCAs with fission product scrubbing 0.00E+00 8.00E+04 8.00E+06 0.00E+00 5 Containment isolation failure with CS 2.38E-08 3.52E+03 3.52E+05 8.38E-03 6 Containment isolation failure without CS 2.60E-08 1.79E+04 1.79E+06 4.65E-02 7 Containment failure before core damage with small (leak) failure of containment 4.36E-09 4.48E+04 4.48E+06 1.95E-02 8 Containment failure before core damage with large (rupture) failure of containment 6.16E-09 5.77E+04 5.77E+06 3.55E-02 9 Core melt arrested in the reactor vessel 2.83E-07 1.73E+01 1.73E+03 4.90E-04








Total 2.07E-06 7.11E-01


KEPCO & KHNP 86

Non-Proprietary

Table 2d Offsite Exposure by Source Term Category for Low Power and Shutdown Internal Events

STC Description STC



Offsite


Offsite










Total 2.91E-06 6.57E-01


KEPCO & KHNP 87

Non-Proprietary

Table 2e Offsite Exposure by Source Term Category for Low Power and Shutdown Flooding

STC Description STC



Offsite


Offsite


1 SGTR bypass of containment without fission product scrubbing 0.00E+00 6.34E+04 6.34E+06 0.00E+00 2 SGTR bypass of containment with fission product scrubbing 0.00E+00 3.03E+02 3.03E+04 0.00E+00 3 ISLOCAs without fission product scrubbing 0.00E+00 9.42E+04 9.42E+06 0.00E+00 4 ISLOCAs with fission product scrubbing 0.00E+00 8.00E+04 8.00E+06 0.00E+00 5 Containment isolation failure with CS 0.00E+00 3.52E+03 3.52E+05 0.00E+00 6 Containment isolation failure without CS 1.84E-08 1.79E+04 1.79E+06 3.29E-02 7 Containment failure before core damage with small (leak) failure of containment 0.00E+00 4.48E+04 4.48E+06 0.00E+00 8 Containment failure before core damage with large (rupture) failure of containment 0.00E+00 5.77E+04 5.77E+06 0.00E+00 9 Core melt arrested in the reactor vessel 0.00E+00 1.73E+01 1.73E+03 0.00E+00

10 No containment failure after core melt 0.00E+00 4.17E+01 4.17E+03 0.00E+00 11 Containment basemat failure 0.00E+00 1.94E+02 1.94E+04 0.00E+00 12 Early containment failure with small (leak) failure of containment 0.00E+00 - - - 13 Early containment failure with large (rupture) failure of containment 0.00E+00 3.31E+04 3.31E+06 0.00E+00

14 Late containment failure with a dry cavity, CS operation, and small (leak) failure of containment 0.00E+00 1.76E+03 1.76E+05 0.00E+00

15 Late containment failure with a wet cavity, CS operation, and small (leak) failure of containment 0.00E+00 - - 0.00E+00

16 Late containment failure with a dry cavity, no CS, and small (leak) failure of containment 0.00E+00 5.01E+03 5.01E+05 0.00E+00 17 Late containment failure with a wet cavity, no CS, and small (leak) failure of containment 0.00E+00 1.20E+02 1.20E+04 0.00E+00

18 Late containment failure with a dry cavity, CS operation, and large (rupture) failure of containment 0.00E+00 2.84E+03 2.84E+05 0.00E+00

19 Late containment failure with a wet cavity, CS operation, and large (rupture) failure of containment 0.00E+00 5.82E+03 5.82E+05 0.00E+00

20 Late containment failure with a dry cavity, no CS, and large (rupture) failure of containment 0.00E+00 7.94E+03 7.94E+05 0.00E+00 21 Late containment failure with a wet cavity, no CS, and large (rupture) failure of containment 0.00E+00 7.85E+03 7.85E+05 0.00E+00

Total 1.84E-08 3.29E-02


KEPCO & KHNP 88

Non-Proprietary

Table 2f Offsite Exposure by Source Term Category for Low Power and Shutdown Fire

STC Description STC



Offsite


Offsite










Total 1.74E-06 7.50E-01


KEPCO & KHNP 89

Non-Proprietary

Table 3a Offsite Property Damage Costs by Source Term Category for At-Power Internal Events

STC Description STC


Conditional Property Costs ($)

Expected Property Costs ($)

1 SGTR bypass of containment without fission product scrubbing 5.33E-08 1.86E+10 991 2 SGTR bypass of containment with fission product scrubbing 2.41E-08 5.00E+07 1 3 ISLOCAs without fission product scrubbing 5.31E-11 2.77E+10 1 4 ISLOCAs with fission product scrubbing 6.49E-11 2.09E+10 1 5 Containment isolation failure with CS 2.46E-09 3.91E+08 1 6 Containment isolation failure without CS 1.23E-09 4.02E+09 5 7 Containment failure before core damage with small (leak) failure of containment 1.14E-08 1.00E+10 114 8 Containment failure before core damage with large (rupture) failure of 1.30E-08 1.56E+10 203 9 Core melt arrested in the reactor vessel 3.67E-07 3.17E+07 12

10 No containment failure after core melt 7.64E-07 3.01E+07 23 11 Containment basemat failure 1.33E-08 4.24E+07 1 12 Early containment failure with small (leak) failure of containment 0.00E+00 - - 13 Early containment failure with large (rupture) failure of containment 1.80E-09 5.67E+09 10 14 Late containment failure with a dry cavity, CS operation, and small (leak) failure of containment 4.28E-11 5.86E+07 0 15 Late containment failure with a wet cavity, CS operation, and small (leak) failure of containment 0.00E+00 - - 16 Late containment failure with a dry cavity, no CS, and small (leak) failure of containment 7.30E-12 3.43E+08 0 17 Late containment failure with a wet cavity, no CS, and small (leak) failure of containment 2.70E-08 3.34E+07 1 18 Late containment failure with a dry cavity, CS operation, and large (rupture) failure of containment 4.19E-10 1.05E+08 0 19 Late containment failure with a wet cavity, CS operation, and large (rupture) failure of containment 4.01E-09 3.60E+08 1 20 Late containment failure with a dry cavity, no CS, and large (rupture) failure of containment 1.19E-11 6.68E+08 0 21 Late containment failure with a wet cavity, no CS, and large (rupture) failure of containment 2.96E-08 8.42E+08 25

Total 1391


KEPCO & KHNP 90

Non-Proprietary

Table 3b Offsite Property Damage Costs by Source Term Category for At-Power Internal Flooding

STC Description STC




1 SGTR bypass of containment without fission product scrubbing 6.2E-09 1.86E+10 116 2 SGTR bypass of containment with fission product scrubbing 0.0E+00 5.00E+07 0 3 ISLOCAs without fission product scrubbing 0.0E+00 2.77E+10 0 4 ISLOCAs with fission product scrubbing 0.0E+00 2.09E+10 0 5 Containment isolation failure with CS 7.4E-10 3.91E+08 0 6 Containment isolation failure without CS 6.1E-09 4.02E+09 24 7 Containment failure before core damage with small (leak) failure of containment 9.4E-10 1.00E+10 9 8 Containment failure before core damage with large (rupture) failure of 1.0E-09 1.56E+10 16 9 Core melt arrested in the reactor vessel 4.2E-08 3.17E+07 1


Total 196


KEPCO & KHNP 91

Non-Proprietary

Table 3c Offsite Property Damage Costs by Source Term Category for At-Power Fire

STC Description STC




1 SGTR bypass of containment without fission product scrubbing 8.31E-08 1.86E+10 1,546 2 SGTR bypass of containment with fission product scrubbing 0.00E+00 5.00E+07 0 3 ISLOCAs without fission product scrubbing 0.00E+00 2.77E+10 0 4 ISLOCAs with fission product scrubbing 0.00E+00 2.09E+10 0 5 Containment isolation failure with CS 2.38E-08 3.91E+08 9 6 Containment isolation failure without CS 2.60E-08 4.02E+09 105 7 Containment failure before core damage with small (leak) failure of containment 4.36E-09 1.00E+10 44 8 Containment failure before core damage with large (rupture) failure of 6.16E-09 1.56E+10 96 9 Core melt arrested in the reactor vessel 2.83E-07 3.17E+07 9


Total 1,926


KEPCO & KHNP 92

Non-Proprietary

Table 3d Offsite Property Damage Costs by Source Term Category for Low Power and Shutdown Internal Events

STC Description STC




1 SGTR bypass of containment without fission product scrubbing 1.46E-08 1.86E+10 272 2 SGTR bypass of containment with fission product scrubbing 6.62E-09 5.00E+07 0 3 ISLOCAs without fission product scrubbing 2.79E-08 2.77E+10 773 4 ISLOCAs with fission product scrubbing 1.78E-11 2.09E+10 0 5 Containment isolation failure with CS 6.75E-10 3.91E+08 0 6 Containment isolation failure without CS 1.06E-08 4.02E+09 43 7 Containment failure before core damage with small (leak) failure of containment 3.13E-09 1.00E+10 31 8 Containment failure before core damage with large (rupture) failure of 3.61E-08 1.56E+10 563 9 Core melt arrested in the reactor vessel 1.01E-07 3.17E+07 3


Total 1,804


KEPCO & KHNP 93

Non-Proprietary

Table 3e Offsite Property Damage Costs by Source Term Category for Low Power and Shutdown Flooding

STC Description STC




1 SGTR bypass of containment without fission product scrubbing 0.00E+00 1.86E+10 - 2 SGTR bypass of containment with fission product scrubbing 0.00E+00 5.00E+07 - 3 ISLOCAs without fission product scrubbing 0.00E+00 2.77E+10 - 4 ISLOCAs with fission product scrubbing 0.00E+00 2.09E+10 - 5 Containment isolation failure with CS 0.00E+00 3.91E+08 - 6 Containment isolation failure without CS 1.84E-08 4.02E+09 74 7 Containment failure before core damage with small (leak) failure of containment 0.00E+00 1.00E+10 - 8 Containment failure before core damage with large (rupture) failure of 0.00E+00 1.56E+10 - 9 Core melt arrested in the reactor vessel 0.00E+00 3.17E+07 -

10 No containment failure after core melt 0.00E+00 3.01E+07 - 11 Containment basemat failure 0.00E+00 4.24E+07 - 12 Early containment failure with small (leak) failure of containment 0.00E+00 - - 13 Early containment failure with large (rupture) failure of containment 0.00E+00 5.67E+09 - 14 Late containment failure with a dry cavity, CS operation, and small (leak) failure of containment 0.00E+00 5.86E+07 - 15 Late containment failure with a wet cavity, CS operation, and small (leak) failure of containment 0.00E+00 - - 16 Late containment failure with a dry cavity, no CS, and small (leak) failure of containment 0.00E+00 3.43E+08 - 17 Late containment failure with a wet cavity, no CS, and small (leak) failure of containment 0.00E+00 3.34E+07 - 18 Late containment failure with a dry cavity, CS operation, and large (rupture) failure of containment 0.00E+00 1.05E+08 - 19 Late containment failure with a wet cavity, CS operation, and large (rupture) failure of containment 0.00E+00 3.60E+08 - 20 Late containment failure with a dry cavity, no CS, and large (rupture) failure of containment 0.00E+00 6.68E+08 - 21 Late containment failure with a wet cavity, no CS, and large (rupture) failure of containment 0.00E+00 8.42E+08 -

Total 74


KEPCO & KHNP 94

Non-Proprietary

Table 3f Offsite Property Damage Costs by Source Term Category for Low Power and Shutdown Fire

STC Description STC




1 SGTR bypass of containment without fission product scrubbing 7.52E-09 1.86E+10 140 2 SGTR bypass of containment with fission product scrubbing 3.40E-09 5.00E+07 0 3 ISLOCAs without fission product scrubbing 2.50E-08 2.77E+10 693 4 ISLOCAs with fission product scrubbing 9.16E-12 2.09E+10 0 5 Containment isolation failure with CS 3.47E-10 3.91E+08 0 6 Containment isolation failure without CS 1.31E-08 4.02E+09 53 7 Containment failure before core damage with small (leak) failure of containment 1.61E-09 1.00E+10 16 8 Containment failure before core damage with large (rupture) failure of 6.86E-08 1.56E+10 1,070 9 Core melt arrested in the reactor vessel 5.18E-08 3.17E+07 2


Total 2,049


KEPCO & KHNP 95

Non-Proprietary

Table 4 (1 of 30) Initial List of Candidate Improvements for the APR1400 SAMDA Analysis

SAMDA ID Potential Enhancement Result of Potential Enhancement Qualitative Screening

Improvements Related to ac and dc Power 1 Provide additional dc battery

capacity Extended dc power availability during an SBO Section 7.8 addresses the potential maximum benefit

for 125 Vdc power events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

2 Replace lead-acid batteries with fuel cells

Extended dc power availability during an SBO Section 7.8 addresses the potential maximum benefit for 125 Vdc power events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

3 Add additional battery charger or portable diesel-driven battery charger to existing dc system

Improved availability of dc power system Section 7.8 addresses the potential maximum benefit for 125 Vdc power events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.


KEPCO & KHNP 96

Non-Proprietary

Table 4 (2 of 30)


4 Improve dc bus load shedding Extended dc power availability during an SBO N/A – Enhancement due to procedure revisions is not applicable to the design certification stage of plant development.

5 Provide dc bus cross-ties Improved availability of dc power system Section 7.8 addresses the potential maximum benefit for 125 Vdc power events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

6 Provide additional dc power to the 120/240V vital ac system

Increased availability of the 120 V vital ac bus Section 7.9 addresses the potential maximum benefit for 120 Vac power events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

7 Add an automatic feature to transfer the 120V vital ac bus from normal to standby power

Increased availability of the 120 V vital AC bus Section 7.9 addresses the potential maximum benefit for 120 Vac power events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

8 Increase training on response to loss of two 120 Vac buses, which causes inadvertent actuation signals

Improved chances of successful response to loss of two 120 Vac buses

N/A – Enhancement due to training is not applicable to the design certification stage of plant development.

9 Provide an additional diesel generator

Increased availability of onsite emergency AC power

Excessive implementation cost

10 Revise procedure to allow bypass of diesel generator trips

Extended diesel generator operation N/A – Enhancement due to procedure revisions is not applicable to the design certification stage of plant development.

11 Improve 4.16 kV bus cross-tie ability Increased availability of onsite AC power N/A – Enhancement due to procedure revisions is not applicable to the design certification stage of plant development.


KEPCO & KHNP 97

Non-Proprietary

Table 4 (3 of 30)


12 Create AC power cross-tie capability with other unit (multi-unit site)

Increased availability of onsite AC power N/A – Enhancement due to procedure revisions is not applicable to the design certification stage of plant development. Also, design certification does not consider dual-unit capability.

13 Install an additional, buried offsite power source

Reduced probability of loss of offsite power Excessive implementation cost

14 Install a gas turbine generator Increased availability of onsite AC power Excessive implementation cost 15 Install tornado protection on gas

turbine generator Increased availability of onsite AC power Excessive implementation cost

16 Improve uninterruptible power supplies

Increased availability of power supplies supporting front-line equipment

Sections 7.9 and 7.11 evaluate the potential maximum benefit for 120 Vac and 4.16 kV power events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

17 Create a cross-tie for diesel fuel oil (multiunit site)

Increased diesel generator availability N/A – Design certification does not consider dual-unit capability.

18 Develop procedures for replenishing diesel fuel oil

Increased diesel generator availability N/A – Enhancement due to procedure revisions is not applicable to the design certification stage of plant development.

19 Use fire water system as a backup source for diesel cooling

Increased diesel generator availability Section 7.1 addresses the potential maximum benefit for EDG events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.


KEPCO & KHNP 98

Non-Proprietary

Table 4 (4 of 30)


20 Add a new backup source of diesel cooling

Increased diesel generator availability Section 7.1 addresses the potential maximum benefit for EDG events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

21 Develop procedures to repair or replace failed 4 KV breakers

Increased probability of recovery from failure of breakers that transfer 4.16 kV nonemergency buses from unit station service transformers

N/A – Enhancement due to procedure revisions is not applicable to the design certification stage of plant development.

22 In training, emphasize steps in recovery of offsite power after an SBO

Reduced human error probability during offsite power recovery

N/A – Enhancement due to training is not applicable to the design certification stage of plant development SAMDA.

23 Develop a severe weather conditions procedure

Improved offsite power recovery following external weather-related events


24 Bury offsite power lines Improved offsite power reliability during severe weather


Improvements Related to Core Cooling Systems

25 Install an independent active or passive high pressure injection system

Improved prevention of core melt sequences Excessive implementation cost

26 Provide an additional high-pressure injection pump with independent diesel

Reduced frequency of core melt from small LOCA and SBO sequences


27 Revise procedure to allow operators to inhibit automatic vessel depressurization in non-ATWS scenarios

Extended HPCI and RCIC operation N/A – Enhancement due to procedure revisions is not applicable to the design certification stage of plant development.


KEPCO & KHNP 99

Non-Proprietary

Table 4 (5 of 30)


28 Add a diverse low pressure injection system

Improved injection capability Excessive implementation cost

29 Provide capability for alternate injection via diesel-driven fire pump

Improved injection capability Sections 7.16 and 7.1 evaluate the potential maximum benefit for SI and EDG events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

30 Improve ECCS suction strainers Enhanced reliability of ECCS suction Already implemented in design. Insights from GSI-191 considered in the APR1400 design; the strainers are designed to minimize potential plugging, and the trash rack located at the ingress of the holdup volume tank (HVT) prescreens any larger debris entering the IRWST.

31 Add the ability to manually align emergency core cooling system recirculation

Enhanced reliability of ECCS suction Already implemented in design. The IRWST eliminates the need to switch to recirculation.

32 Add the ability to automatically align emergency core cooling system to recirculation mode upon refueling water storage tank depletion

Enhanced reliability of ECCS suction Already implemented in design. The IRWST eliminates the need to switch to recirculation.

33 Provide hardware and procedure to refill the reactor water storage tank once it reaches a specified low level

Extended reactor water storage tank capacity in the event of a steam generator tube rupture



KEPCO & KHNP 100

Non-Proprietary

Table 4 (6 of 30)


34 Provide an in-containment reactor water storage tank

Continuous source of water to the safety injection pumps during a LOCA event, since water released from a breach of the primary system collects in the in-containment reactor water storage tank, and thereby eliminates the need to realign the safety injection pumps for long-term post-LOCA recirculation

Already implemented in design. The design includes an in-containment reactor water storage tank

35 Throttle low pressure injection pumps earlier in medium or large-break LOCAs to maintain reactor water storage tank inventory

Extended reactor water storage tank capacity Already implemented – The discharged water through the break collects in the holdup volume tank (HVT), which is then transferred to the IRWST, which eliminates the need to throttle low pressure injection pumps.

36 Emphasize timely recirculation alignment in operator training

Reduced human error probability associated with recirculation failure


37 Upgrade the chemical and volume control system to mitigate small LOCAs

For a plant like the Westinghouse AP600, where the chemical and volume control system cannot mitigate a small LOCA, an upgrade would decrease the frequency of core damage


38 Change the in-containment reactor water storage tank suction from four check valves to two check and two air-operated valves

Reduced common mode failure of injection paths

Section 7.16 addresses the potential maximum benefit for SI events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.


KEPCO & KHNP 101

Non-Proprietary

Table 4 (7 of 30)


39 Replace two of the four electric safety injection pumps with diesel-powered pumps

Reduced common cause failure of the safety injection system. This SAMA was originally intended for the Westinghouse-CE System 80+, which has four trains of safety injection. However, the intent of this SAMA is to provide diversity within the high- and low-pressure safety injection systems.

Section 7.16 addresses the potential maximum benefit for SI events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

40 Provide capability for remote, manual operation of secondary side pilot-operated relief valves in a station blackout

Improved chance of successful operation during station blackout events in which high area temperatures may be encountered (no ventilation to main steam areas)


41 Create a reactor coolant depressurization system

Allows low pressure emergency core cooling system injection in the event of small LOCA and high-pressure safety injection failure

Already implemented in design – Safety depressurization and vent system

42 Make procedure changes for reactor coolant system depressurization

Allows low pressure emergency core cooling system injection in the event of small LOCA and high-pressure safety injection failure


Improvements Related to Cooling Water

43 Add redundant dc control power for SW pumps

Increased availability of SW Section 7.18 addresses the potential maximum benefit for ESW filter events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

44 Replace ECCS pump motors with air-cooled motors

Elimination of ECCS dependency on component cooling system

Already implemented – SI pump motors are air cooled by room coolers.

45 Enhance procedural guidance for use of cross-tied component cooling or service water pumps

Reduced frequency of loss of component cooling water and service water



KEPCO & KHNP 102

Non-Proprietary

Table 4 (8 of 30)


46 Add a service water pump Increased availability of cooling water Excessive implementation cost 47 Enhance the screen wash system Reduced potential for loss of SW due to

clogging of screens Section 7.17 addresses the potential maximum benefit for ESW filter events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

48 Cap downstream piping of normally closed component cooling water drain and vent valves

Reduced frequency of loss of component cooling water initiating events, some of which can be attributed to catastrophic failure of one of the many single isolation valves

Already implemented – The design includes the caps for downstream piping of normally closed component cooling water drain and vent valves. See 1-461 series drawings.

49 Enhance loss of component cooling water (or loss of service water) procedures to facilitate stopping the reactor coolant pumps

Reduced potential for reactor coolant pump seal damage due to pump bearing failure


50 Enhance loss of component cooling water procedure to underscore the desirability of cooling down the reactor coolant system prior to seal LOCA

Reduced probability of reactor coolant pump seal failure


51 Additional training on loss of component cooling water

Improved success of operator actions after a loss of component cooling water


52 Provide hardware connections to allow another essential raw cooling water system to cool charging pump seals

Reduced effect of loss of component cooling water by providing a means to maintain the charging pump seal injection following a loss of normal cooling water

N/A – Two charging pumps are air cooled. Additional auxiliary charging pump is a positive displacement type and requires no external cooling.


KEPCO & KHNP 103

Non-Proprietary

Table 4 (9 of 30)


53 On loss of essential raw cooling water, proceduralize shedding component cooling water loads to extend the component cooling water heat-up time.

Increased time before loss of component cooling water (and reactor coolant pump seal failure) during loss of essential raw cooling water sequences.


54 Increase charging pump lube oil capacity.

Increased time before charging pump failure due to lube oil overheating in loss of cooling water sequences.

Section 7.7 addresses the potential maximum benefit for charging pump events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

55 Install an independent reactor coolant pump seal injection system, with dedicated diesel.

Reduced frequency of core damage from loss of component cooling water, service water, or station blackout.


56 Install an independent reactor coolant pump seal injection system, without dedicated diesel.

Reduced frequency of core damage from loss of component cooling water or service water, but not a station blackout.


57 Use existing hydro test pump for reactor coolant pump seal injection.

Reduced frequency of core damage from loss of component cooling water or service water, but not a station blackout.


58 Install improved reactor coolant pump seals.

Reduced likelihood of reactor coolant pump seal LOCA.

Already implemented – The APR1400 will use an advanced RCP seal design.

59 Install an additional component cooling water pump.

Reduced likelihood of loss of component cooling water leading to a reactor coolant pump seal LOCA.



KEPCO & KHNP 104

Non-Proprietary

Table 4 (10 of 30)


60 Prevent makeup pump flow diversion through the relief valves.

Reduced frequency of loss of reactor coolant pump seal cooling if spurious high pressure injection relief valve opening creates a flow diversion large enough to prevent reactor coolant pump seal injection.

Section 7.13 addresses the potential maximum benefit for seal failure events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

61 Change procedures to isolate reactor coolant pump seal return flow on loss of component cooling water, and provide (or enhance) guidance on loss of injection during seal LOCA.

Reduced frequency of core damage due to loss of seal cooling.


62 Implement procedures to stagger high pressure safety injection pump use after a loss of service water.

Extended high pressure injection prior to overheating following a loss of service water.


63 Use fire prevention system pumps as a backup seal injection and high pressure makeup source.

Reduced frequency of reactor coolant pump seal LOCA.

Section 7.13 addresses the potential maximum benefit for seal failure events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

64 Implement procedure and hardware modifications to allow manual alignment of the fire water system to the component cooling water system, or install a component cooling water header cross-tie.

Improved ability to cool residual heat removal heat exchangers.



KEPCO & KHNP 105

Non-Proprietary

Table 4 (11 of 30)


Improvements Related to Feedwater and Condensate

65 Install a digital feedwater upgrade. Reduced chance of loss of main feedwater following a plant trip.

Very low benefit

66 Create ability for emergency connection of existing or new water sources to feedwater and condensate systems.

Increased availability of feedwater. Section 7.3 addresses the potential maximum benefit for AFW-related events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

67 Install an independent diesel for the condensate storage tank makeup pumps.

Extended inventory in CST during an SBO. Section 7.3 addresses the potential maximum benefit for AFW-related events. None of the important events are related to the need for extra AFWST inventory. Therefore, the potential benefit for this item would be negligible.

68 Add a motor-driven feedwater pump.

Increased availability of feedwater. Already implemented – APR1400 has two TDAFWPs and two MDAFWPs.

69 Install manual isolation valves around auxiliary feedwater turbine-driven steam admission valves.

Reduced dual turbine-driven pump maintenance unavailability.

Already implemented – See 1-526 series P&IDs, manual valves installed up and downstream of steam inlet stop valve (HP/LP).

70 Install accumulators for turbine-driven auxiliary feedwater pump flow control valves.

Eliminates the need for local manual action to align nitrogen bottles for control air following a loss of offsite power.

N/A – Steam control valves are electrohydraulically operated.

71 Install a new condensate storage tank (auxiliary feedwater storage tank).

Increased availability of the auxiliary feedwater system.

Section 7.3 addresses the potential maximum benefit for AFW-related events. None of the important events are related to the need for extra AFWST inventory. Therefore, the potential benefit for this item would be negligible.


KEPCO & KHNP 106

Non-Proprietary

Table 4 (12 of 30)


72 Modify the turbine-driven auxiliary feedwater pump to be self-cooled.

Improved success probability during a station blackout.

Already implemented – TDAFWPs are designed to operate in severe environments.

73 Proceduralize local manual operation of auxiliary feedwater system when control power is lost.

Extended auxiliary feedwater availability during a station blackout. Also provides a success path should auxiliary feedwater control power be lost in non-station blackout sequences.


74 Provide hookup for portable generators to power the turbine-driven auxiliary feedwater pump after station batteries are depleted.

Extended auxiliary feedwater availability. Section 7.8 addresses the potential maximum benefit for 125 Vdc power events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

75 Use fire water system as a backup for steam generator inventory.

Increased availability of steam generator water supply.

Section 7.3 addresses the potential maximum benefit for AFW-related events. None of the important events are related to the need for extra AFWST inventory. Therefore, the potential benefit for this item would be negligible.

76 Change failure position of condenser makeup valve if the condenser makeup valve fails open on loss of air or power.

Allows greater inventory for the auxiliary feedwater pumps by preventing condensate storage tank flow diversion to the condenser.

Already implemented – Condensate storage tank makeup to condenser AOVs fail closed (1-531 (1/5) P&ID).

77 Provide a passive, secondary-side heat rejection loop consisting of a condenser and heat sink.

Reduced potential for core damage due to loss-of-feedwater events.


78 Modify the startup feedwater pump so that it can be used as a backup to the emergency feedwater system, including during a station blackout scenario.

Increased reliability of decay heat removal. Section 7.3 addresses the potential maximum benefit for AFW-related events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.


KEPCO & KHNP 107

Non-Proprietary

Table 4 (13 of 30)


79 Replace existing pilot-operated relief valves with larger ones, such that only one is required for successful feed and bleed.

Increased probability of successful feed and bleed.

Already implemented – Success criterion for feed-and-bleed cooling is one POSRV.

Improvements Related to Heating, Ventilation, and Air Conditioning

80 Provide a redundant train or means of ventilation.

Increased availability of components dependent on room cooling.

Section 7.15 addresses the potential maximum benefit for HVAC-related events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

81 Add a diesel building high temperature alarm or redundant louver and thermostat.

Improved diagnosis of a loss of diesel building HVAC.


82 Stage backup fans in switchgear rooms.

Increased availability of ventilation in the event of a loss of switchgear ventilation.


83 Add a switchgear room high temperature alarm.

Improved diagnosis of a loss of switchgear HVAC.

Already implemented – The temperature switch is provided in the switchgear room. The cubicle cooler in the switchgear room operates automatically by the temperature switch to provide additional cooling as needed. The temperature in the switchgear room is indicated and high-high temperature is announced in the MCR and RSR. N/A – HVAC


KEPCO & KHNP 108

Non-Proprietary

Table 4 (14 of 30)


84 Create ability to switch emergency feedwater room fan power supply to station batteries in a station blackout.

Continued fan operation in a station blackout. Already implemented – TDAFWPs are designed to operate in severe environments.

Improvements Related to Instrument Air and Nitrogen Supply

85 Provide cross-unit connection of uninterruptible compressed air supply.

Increased ability to vent containment using the hardened vent.

N/A – The submitted design is a single-unit design and enhancement due to a cross-unit connection is not a part of the design certification design.

86 Modify procedure to provide ability to align diesel power to more air compressors.

Increased availability of instrument air after a LOOP.


87 Replace service and instrument air compressors with more reliable compressors which have self-contained air cooling by shaft driven fans.

Elimination of instrument air system dependence on service water cooling.

Instrument air is a negligible contribution to plant risk. Therefore, any design change related to instrument air would provide a negligible benefit.

88 Install nitrogen bottles as backup gas supply for safety relief valves.

Extended SRV operation time. Not applicable – The APR1400 uses pilot-operated safety relief valves that do not require air to operate.

89 Improve SRV and MSIV pneumatic components.

Improved availability of SRVs and MSIVs. Table 6 shows that, given the low importance of the MSIV events, there is a very small potential maximum benefit to this modification. As a result, this SAMDA does not provide a positive benefit.


KEPCO & KHNP 109

Non-Proprietary

Table 4 (15 of 30)


Improvements Related to Containment Phenomena

90 Create a reactor cavity flooding system.

Enhanced debris coolability, reduced core concrete interaction, and increased fission product scrubbing.

Already implemented – Cavity flooding system

91 Install a passive containment spray system.

Improved containment spray capability. Implementation of this SAMDA does not affect CDF and would only cause a reduction in offsite risk costs, which limits potential benefit to a maximum of $182,000.

In reality, the total maximum benefit would be much lower because all offsite consequences would not be eliminated. Therefore, this design change would be expected to cost more than this amount and, as a result, not provide a positive benefit.

92 Use the fire water system as a backup source for the containment spray system.

Improved containment spray capability. Already implemented – ESBCS

93 Install an unfiltered, hardened containment vent.

Increased decay heat removal capability for non-ATWS events, without scrubbing released fission products.


94 Install a filtered containment vent to remove decay heat. Option 1: gravel bed filter; Option 2: multiple venturi scrubber.

Increased decay heat removal capability for non-ATWS events, with scrubbing of released fission products.



KEPCO & KHNP 110

Non-Proprietary

Table 4 (16 of 30)


95 Enhance fire protection system and standby gas treatment system hardware and procedures.

Improved fission product scrubbing in severe accidents.


96 Provide post-accident containment inerting capability.

Reduced likelihood of hydrogen and carbon monoxide gas combustion.


97 Create a large concrete crucible with heat removal potential to contain molten core debris.

Increased cooling and containment of molten core debris. Molten core debris escaping from the vessel is contained within the crucible and a water cooling mechanism cools the molten core in the crucible, preventing melt-through of the basemat.


98 Create a core melt source reduction system.

Increased cooling and containment of molten core debris. Refractory material would be placed underneath the reactor vessel such that a molten core falling on the material would melt and combine with the material. Subsequent spreading and heat removal from the vitrified compound would be facilitated, and concrete attack would not occur.


99 Strengthen primary/secondary containment (e.g., add ribbing to containment shell).

Reduced probability of containment overpressurization.



KEPCO & KHNP 111

Non-Proprietary

Table 4 (17 of 30)


100 Increase depth of the concrete basemat or use an alternate concrete material to ensure melt-through does not occur.

Reduced probability of basemat melt-through. Excessive implementation cost

101 Provide a reactor vessel exterior cooling system.

Increased potential to cool a molten core before it causes vessel failure, by submerging the lower head in water.


102 Construct a building to be connected to primary/secondary containment and maintained at a vacuum.

Reduced probability of containment overpressurization.


103 Institute simulator training for severe accident scenarios.

Improved arrest of core melt progress and prevention of containment failure.


104 Improve leak detection procedures. Increased piping surveillance to identify leaks prior to complete failure. Improved leak detection would reduce LOCA frequency.


105 Delay containment spray actuation after a large LOCA.

Extended reactor water storage tank availability.



KEPCO & KHNP 112

Non-Proprietary

Table 4 (18 of 30)


106 Install automatic containment spray pump header throttle valves.

Extended time over which water remains in the reactor water storage tank, when full containment spray flow is not needed.

Already implemented – All ECCS pumps take suction from the IRWST.

107 Install a redundant containment spray system.

Increased containment heat removal ability. Excessive implementation cost

108 Install an independent power supply to the hydrogen control system using either new batteries, a non-safety grade portable generator, existing station batteries, or existing ac/dc independent power supplies, such as the security system diesel.

Reduced hydrogen detonation potential. Already implemented – H2 control system includes a system of two redundant passive autocatalytic recombiners.

109 Install a passive hydrogen control system.

Reduced hydrogen detonation potential. Already implemented – H2 control system includes a system of two redundant passive autocatalytic recombiners.

110 Erect a barrier that would provide enhanced protection of the containment walls (shell) from ejected core debris following a core melt scenario at high pressure.

Reduced probability of containment failure. Implementation of this SAMDA does not affect CDF and would only cause a reduction in offsite risk costs, which limits potential benefit to a maximum of $182,000. In reality, the total maximum benefit would be much lower because all offsite consequences would not be eliminated. Therefore, this design change would be expected to cost more than this amount and, as a result, not provide a positive benefit.


KEPCO & KHNP 113

Non-Proprietary

Table 4 (19 of 30)


Improvements Related to Containment Bypass

111 Install additional pressure or leak monitoring instruments for detection of ISLOCAs.

Reduced ISLOCA frequency. Already implemented. Refer to 441-series P&ID.

112 Add redundant and diverse limit switches to each containment isolation valve.

Reduced frequency of containment isolation failure and ISLOCAs.

Already implemented. Refer to 441-series P&ID.

113 Increase leak testing of valves in ISLOCA paths.

Reduced ISLOCA frequency. N/A – Enhancement due to procedure revisions is not applicable to the design certification stage of plant development.

114 Install self-actuating containment isolation valves.

Reduced frequency of isolation failure. Already implemented – Containment isolation system provides automatic and leaktight closure of those valves required to close for containment integrity.

115 Locate residual heat removal (RHR) inside containment.

Reduced frequency of ISLOCA outside containment.


116 Ensure ISLOCA releases are scrubbed. One method is to plug drains in potential break areas so that break point will be covered with water.

Scrubbed ISLOCA releases. Excessive implementation cost


KEPCO & KHNP 114

Non-Proprietary

Table 4 (20 of 30)


117 Revise EOPs to improve ISLOCA identification.

Increased likelihood that LOCAs outside containment are identified as such. A plant had a scenario in which an RHR ISLOCA could direct initial leakage back to the pressurizer relief tank, giving indication that the LOCA was inside containment.


118 Improve operator training on ISLOCA coping.

Decreased ISLOCA consequences. N/A – Enhancement due to training is not applicable to the design certification stage of plant development.

119 Institute a maintenance practice to perform a 100% inspection of steam generator tubes during each refueling outage.

Reduced frequency of steam generator tube ruptures.


120 Replace steam generators with a new design.

Reduced frequency of steam generator tube ruptures.


121 Increase the pressure capacity of the secondary side so that a steam generator tube rupture would not cause the relief valves to lift.

Eliminates release pathway to the environment following a steam generator tube rupture.


122 Install a spray system to depressurize the primary system during a steam generator tube rupture.

Enhanced depressurization capabilities during steam generator tube rupture.



KEPCO & KHNP 115

Non-Proprietary

Table 4 (21 of 30)


123 Proceduralize use of pressurizer vent valves during steam generator tube rupture sequences.

Backup method to using pressurizer sprays to reduce primary system pressure following a steam generator tube rupture.


124 Provide improved instrumentation to detect steam generator tube ruptures, such as Nitrogen-16 monitors.

Improved mitigation of steam generator tube ruptures.

Already implemented – H2 control system includes a system of two redundant passive autocatalytic recombiners.

125 Route the discharge from the main steam safety valves through a structure where a water spray would condense the steam and remove most of the fission products.

Reduced consequences of a steam generator tube rupture.


126 Install a highly reliable (closed loop) steam generator shell-side heat removal system that relies on natural circulation and stored water sources



127 Revise emergency operating procedures to direct isolation of a faulted steam generator.




KEPCO & KHNP 116

Non-Proprietary

Table 4 (22 of 30)


128 Direct steam generator flooding after a steam generator tube rupture, prior to core damage.

Improved scrubbing of steam generator tube rupture releases.


129 Vent main steam safety valves in containment.



Improvements Related to ATWS

130 Add an independent boron injection system.

Improved availability of boron injection during ATWS.

Section 7.20 addresses the potential maximum benefit for ATWS-related events. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

131 Add a system of relief valves to prevent equipment damage from pressure spikes during an ATWS.

Improved equipment availability after an ATWS.


132 Provide an additional control system for rod insertion (e.g., AMSAC).

Improved redundancy and reduced ATWS frequency.


133 Install an ATWS sized filtered containment vent to remove decay heat.

Increased ability to remove reactor heat from ATWS events.



KEPCO & KHNP 117

Non-Proprietary

Table 4 (23 of 30)


134 Revise procedure to bypass MSIV isolation in turbine trip ATWS scenarios.

Affords operators more time to perform actions. Discharge of a substantial fraction of steam to the main condenser (i.e., as opposed to into the primary containment) affords the operator more time to perform actions (e.g., SLC injection, lower water level, depressurize RPV) than if the main condenser was unavailable, resulting in lower human error probabilities.


135 Revise procedure to allow override of low pressure core injection during an ATWS event.

Allows immediate control of low pressure core injection. On failure of high pressure core injection and condensate, some plants direct reactor depressurization followed by five minutes of automatic low pressure core injection.


136 Install motor generator set trip breakers in control room.

Reduced frequency of core damage due to an ATWS.


137 Provide capability to remove power from the bus powering the control rods.

Decreased time required to insert control rods if the reactor trip breakers fail (during a loss of feedwater ATWS which has rapid pressure excursion).



KEPCO & KHNP 118

Non-Proprietary

Table 4 (24 of 30)


Improvements Related to Internal Flooding

138 Improve inspection of rubber expansion joints on main condenser.

Reduced frequency of internal flooding due to failure of circulating water system expansion joints.


139 Modify swing direction of doors separating turbine building basement from areas containing safeguards equipment.

Prevents flooding propagation. N/A – This item relates to a specific vulnerability at one station.

Improvements to Reduce Seismic Risk

140 Increase seismic ruggedness of plant components.

Increased availability of necessary plant equipment during and after seismic events.

Seismic risk is considered negligible to the APR1400 plant design.

141 Provide additional restraints for CO2 tanks.

Increased availability of fire protection given a seismic event.

Seismic risk is considered negligible to the APR1400 plant design.

Improvements to Reduce Fire Risk

142 Replace mercury switches in fire protection system.

Decreased probability of spurious fire suppression system actuation.

Implementation of this SAMDA would only affect fire risk (at-power and LPSD), which limits potential benefit to a maximum of $380,000. In reality, the total maximum benefit would be much lower because all fire consequences would not be eliminated. Therefore, this design change would be expected to cost more than this amount and, as a result, not provide a positive benefit.


KEPCO & KHNP 119

Non-Proprietary

Table 4 (25 of 30)


143 Upgrade fire compartment barriers. Decreased consequences of a fire. Section 7.4 addresses the potential maximum benefit for fire barrier failures. A design change would be expected to cost more than this amount and, as a result, does not provide a positive benefit.

144 Install additional transfer and isolation switches.

Reduced number of spurious actuations during a fire.

Implementation of this SAMDA would only affect fire risk (at-power and LPSD), which limits potential benefit to a maximum of $380,000. In reality, the total maximum benefit would be much lower because all fire consequences would not be eliminated. Therefore, this design change would be expected to cost more than this amount and, as a result, not provide a positive benefit.

145 Enhance fire brigade awareness. Decreased consequences of a fire. N/A – Enhancement due to procedures/training is not applicable to the design certification stage of plant development.

146 Enhance control of combustibles and ignition sources.

Decreased fire frequency and consequences. N/A – Enhancement due to procedures/training is not applicable to the design certification stage of plant development.


KEPCO & KHNP 120

Non-Proprietary

Table 4 (26 of 30)


Other Improvements

147 Install digital large break LOCA protection system.

Reduced probability of a large break LOCA (a leak before break).

Large break LOCAs are a negligible contribution to plant risk. Therefore, any design change related to instrument air would provide a negligible benefit.

148 Enhance procedures to mitigate large break LOCA.

Reduced consequences of a large break LOCA.


149 Install computer aided instrumentation system to assist the operator in assessing post-accident plant status.

Improved prevention of core melt sequences by making operator actions more reliable.

N/A – Enhancements to improve procedural compliance are not applicable to the design certification stage of plant development.

150 Improve maintenance procedures. Improved prevention of core melt sequences by increasing reliability of important equipment.


151 Increase training and operating experience feedback to improve operator response.

Improved likelihood of success of operator actions taken in response to abnormal conditions.

N/A – Enhancement due to training is not applicable to the design certification stage of plant development (included in the specific operator action SAMDAs).

152 Develop procedures for transportation and nearby facility accidents.

Reduced consequences of transportation and nearby facility accidents.



KEPCO & KHNP 121

Non-Proprietary

Table 4 (27 of 30)


153 Install secondary side guard pipes up to the main steam isolation valves.

Prevents secondary side depressurization should a steam line break occur upstream of the main steam isolation valves. Also guards against or prevents consequential multiple steam generator tube ruptures following a main steam line break event.

Secondary line breaks are a negligible contribution to plant risk. Therefore, any design change related to instrument air would provide a negligible benefit.

APR1400 Design-Specific Items

APR1400 – 1 Improve reliability of the onsite AC power

Installed gas turbine generator, instead of diesel generator, to increase reliability of the onsite AC power. The gas turbine generator provides diversity to EDGs.

Already Implemented

APR1400 – 2 Extended DC power availability Installed a standby battery charger for each 125 Vdc battery to improve reliability of 125 Vdc power.

Already Implemented

APR1400 – 3 Enhance AC and DC power capability during extended SBO

Installed provision for the mobile gas turbine generators to increase AC and DC power capabilities during extended SBO.

Already Implemented, as a part of post Fukushima action

APR1400 – 4 Enhance reliability of low pressure safety injection function

Installed fluidic device in SIT to enhance core cooling capability during large break LOCA by extending SIT injection duration.

Already Implemented

APR1400 – 5 Enhance core cooling capability during extended SBO

Installed provision to connect two mobile core cooling pumps that enables high and low pressure injections into RCS during extended SBO.


APR1400 – 6 Enhance reliability of Safety Depressurization and Vent System (SDVS)

Changed the design by replacing pressurizer safety valves (PSVs) and safety depressurization valves (SDVs) with pilot operated safety relief valves (POSRVs) that provide safety relief and pressure depressurization functions. POSRVs provide enhanced reliability of SDVs with 4 additional relieving paths in addition to 2 SDV paths.

Already Implemented


KEPCO & KHNP 122

Non-Proprietary

Table 4 (28 of 30)


APR1400 - 7 Enhance rapid depressurization (RD) capability to eliminate high pressure melt ejection.

Installed POSRVs to provide rapid depressurization (RD) to eliminate high pressure melt ejection potential during severe accidents by depressurizing RCS with additional pressure relief paths.

Already Implemented

APR1400 – 8 Improve ECCS suction reliability Enhanced ECCS strainers in IRWST such that strainer blockage minimized. This design addresses GSI-191 strainer plugging issue.

Already Implemented

APR1400 – 9 Minimize debris accumulation in containment during accident condition

Installed reflective metallic insulation (RMI), which eliminates large amount of debris accumulation in containment during accident condition. This design addresses GSI-191 strainer plugging issue.

Already Implemented

APR1400 – 10 Improve secondary heat removal control

Changed auxiliary feedwater (AF) modulating valve actuator from MOV to SOV which increased reliability of AF flow control function.

Already Implemented

APR1400 – 11 Enhance secondary cooling capability during extended SBO

Installed provision to connect two mobile cooling pumps that enables secondary cooling during extended SBO.


APR1400 – 12 Minimize SC pump suction vortexing vulnerability during mid-loop operation

Improved SC pump suction level to minimize vortexing with increased RCS water level during mid-loop operation using improved design of SG inlet/outlet nozzles.

Already Implemented

APR1400 – 13 Develop operational procedure and train operators for CCW division cross tie operation

Develop procedure and train operators to establish division crosstie of CCW system to prevent loss of RCP seal cooling.

N/A -This item is not in scope of Design Certification.


KEPCO & KHNP 123

Non-Proprietary

Table 4 (29 of 30)


APR1400 – 14 Provide room cooling diversity during accident condition

Improved Emergency HVAC system capability to be used as a diverse backup capability to ECW. Auxiliary building controlled area emergency exhaust ACU is used as diverse cooling of ECCS equipment rooms by removing heated air from the ECCS equipment rooms during a loss of ECW.

Already Implemented

APR1400 – 15 Improve room cooling reliability Changed key SSCs to air-cooled, instead of water-cooled, and installed safety-grade cubicle coolers.

Already Implemented

APR1400 – 16 Improve reliability of hydrogen mitigation

Installed passive autocatalytic recombiners (PARs) as passive means to remove hydrogen accumulated in containment.

Already Implemented

APR1400 – 17 Eliminate hydrogen accumulation in IRWST during severe accident

Installed three-way valve in SDVS discharge line to reduce hydrogen accumulation in IRWST.

Already Implemented

APR1400 – 18 Reduce steam discharge impact on IRWST wall during accident condition

Enhanced the spargers in IRWST to minimize the steam discharge impact load on the IRWST wall during accident condition.

Already Implemented

APR1400 – 19 Reduce auxiliary building flooding vulnerability

Located the dedicated CCW HX building outside of auxiliary building which eliminates a potential unlimited water source.

Already Implemented

APR1400 – 20 Increase seismic capability of inner barrel assembly of reactor

Developed the inner barrel assembly to strengthen seismic capability.

Already Implemented

APR1400 – 21 Eliminate MSO vulnerability of cables

Four physical quadrant design in auxiliary building and divisional separation of electrical cables minimizes MSO vulnerability. In addition, MSO evaluation was completed, where all potential MSO cables are to be either cable wrapped or physically separated away from each other to eliminate MSO vulnerability.

N/A -This item is not in scope of Design Certification.


KEPCO & KHNP 124

Non-Proprietary

Table 4 (30 of 30)


APR1400 – 22 Enhance plant capability against LOLA

Installed fire protection system ring headers underground to prevent potential damage from LOLA event.

Already Implemented

APR1400 – 23 Strengthen shutdown capability against aircraft impact

Remote Control Console (RCC) provides means of controls, indications and alarm to achieve plant hot shutdown against aircraft impact as a backup to MCR and Remote Shutdown Panel (RSP). The RCC is installed at an area where concurrent failure with the MCR and RSP is prevented.

Already Implemented

APR1400 – 24 Strengthen physical security alarm system

Installed physically separated Central Alarm Station (CAS) and Secondary Alarm Station (SAS) away from each other to strengthen the Physical Security Program.

Already Implemented

APR1400 – 25 Enhance plant capability against LOLA and extended SBO

Installed additional spent fuel pool cooling pump and installed level instrumentation.

Already Implemented, as a part post Fukushima action

APR1400 – 26 Develop operational procedure and train operators for SBLOCA and SGTR

– N/A -This item is not in scope of Design Certification

APR1400 – 27 Develop operational procedure and train operators for manual operation of ECSBS


APR1400 – 28 Develop operational procedure and train operators for extended SBO


APR1400 – 29 Develop operational procedure and train operators for mid-loop operation during refueling outage



KEPCO & KHNP 125

Non-Proprietary

Table 5a (1 of 16) List of Basic Events from APR1400 PRA CDF Importance Analysis (At-Power Internal Events)

Item No. Event Name Probability

Fussell-Vesely

Importance Description Disposition

1 PFLOOP-TRANS 2.400E-03 1.966E-01 CONDITIONAL LOOP UPON TRANSIENTS

Conditional LOOP event – no impact on SAMDA analysis

2 %LOOP-GR 1.160E-02 1.393E-01 GRID-RELATED LOOP Initiating event – no impact on SAMDA analysis

3 %LOOP-SW 9.880E-03 1.122E-01 SWITCHYARD-CENTERED LOOP Initiating event – no impact on SAMDA analysis

4 SEAL-AFSUC 4.000E-03 1.015E-01 SEAL FAILURE PROBABILITY (SECONDARY HEAT REMOVAL SUCCESS)

The component associated with this basic event is evaluated in Section 7.13. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

5 %MLOCA 4.850E-04 9.522E-02 MEDIUM LOSS OF COOLANT ACCIDENT

Initiating event – no impact on SAMDA analysis

6 %PLOCCW 4.360E-03 9.429E-02 PARTIAL LOSS OF COMPONENT COOLING WATER


7 %LOOP-WE 3.710E-03 8.863E-02 WEATHER-RELATED LOOP Initiating event – no impact on SAMDA analysis

8 PFLOOP-LOCA 2.400E-02 7.895E-02 CONDITIONAL LOOP UPON LOCA INITIATORS

Conditional LOOP event – no impact on SAMDA analysis

9 %TLOCCW 2.340E-04 7.435E-02 TOTAL LOSS OF COMPONENT COOLING WATER


10 %TLOESW 2.340E-04 7.435E-02 TOTAL LOSS OF ESSENTIAL SERVICE WATER


11 RCOPH-S-SDSE-FW 9.100E-03 7.409E-02 FAILURE OF SDS VALVES EARLY PHASE OPEN (1/4)

Procedural changes are not in the scope of this SAMDA analysis

12 CVDPR-S-PP03 4.776E-02 7.053E-02 FAILS TO RUN AUX. CHARGING PUMP PP03



KEPCO & KHNP 126

Non-Proprietary

Table 5a (2 of 16)


Fussell-Vesely


13 DGDGM-B-DGB 1.440E-02 6.772E-02 DG 01B UNAVAILABLE DUE TO MAINTENANCE


14 DGDGR-B-DGB 2.492E-02 6.239E-02 FAILS TO RUN OF EMERGENCY DIESEL GENERATOR DG01B


15 AFTPR1A-TDP01A 3.518E-02 6.107E-02 FAILS TO RUN AFW TDP PP01A The component associated with this basic event is evaluated in Section 7.3. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

16 %GTRN 6.560E-01 5.557E-02 GENERAL TRANSIENT Initiating event – no impact on SAMDA analysis.

17 %PLOESW 2.520E-03 5.433E-02 PARTIAL LOSS OF ESSENTIAL SERVICE WATER

Initiating event – no impact on SAMDA analysis.

18 SXFLP-S-FT0123AB 5.580E-05 5.379E-02 ESW DEBRIS FILTER FT01A PLUGGED


19 DCBTM-B-BT01B 2.820E-03 5.277E-02 CLASS 1E 125V DC BATTERY BT01B UNAVAILABLE DUE TO T&M


20 DATGR-S-AACTG 1.564E-01 5.091E-02 AAC GAS TURBINE GENERATOR FAILS TO RUN



KEPCO & KHNP 127

Non-Proprietary

Table 5a (3 of 16)


Fussell-Vesely


21 DGDGR-D-DGD 2.492E-02 4.824E-02 FAILS TO RUN OF EMERGENCY DIESEL GENERATOR DG01D


22 DCBTM-A-BT01A 2.820E-03 4.708E-02 CLASS 1E 125V DC BATTERY BT01A UNAVAILABLE DUE TO T&M


23 AFTPR1B-TDP01B 3.518E-02 4.596E-02 FAILS TO RUN AFW TDP PP01B The component associated with this basic event is evaluated in Section 7. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

24 I-ATWS-RPMCF 2.981E-07 4.490E-02 FAILURE TO SCRAM DUE TO MECHANICAL FAILURES


25 AFMVC1A-045 5.783E-02 4.450E-02 AFW ISOL. MOV 0045 FAILS TO CLOSE FOR CYCLING OPERATION


26 AFMVO1A-045 5.783E-02 4.450E-02 AFW ISOL. MOV 045 FAILS TO OPEN FOR CYCLING OPERATION


27 AFMVC1B-046 5.783E-02 4.269E-02 AFW ISOL. MOV 046 FAILS TO CLOSE FOR CYCLING OPERATION



KEPCO & KHNP 128

Non-Proprietary

Table 5a (4 of 16)


Fussell-Vesely


28 AFMVO1B-046 5.783E-02 4.269E-02 AFW ISOL. MOV 046 FAILS TO OPEN FOR CYCLING OPERATION


29 PFOPH-S-UATBKR-LOCAL

5.200E-02 4.224E-02 OPERATOR FAILS TO RECOVER PCB FOR 1E 4.16KV SW01A,B,C,D AT LOCAL


30 RAC-16H-WE 1.590E-01 4.216E-02 NON-RECOVERY PROBABILITY OF OFFSITE POWER WITHIN 16HR (WEATHER RELATED)

This event represents characteristics of the site at which the plant will be located and the probability is based on generic industry data. Design changes to affect the risk from site characteristics are not applicable to the SAMDA analysis and this event is not considered further.

31 IPINM-B-IN01B 2.740E-03 4.040E-02 CLASS 1E 120V AC INVERTER IN01B UNAVAILABLE DUE TO T&M


32 DGDGM-A-DGA 1.440E-02 3.906E-02 DG 01A UNAVAILABLE DUE TO MAINTENANCE


33 %SLOCA 1.990E-03 3.804E-02 SMALL LOSS OF COOLANT ACCIDENT


34 RCOPH-S-SDSE-FW-HD

5.046E-01 3.779E-02 FAILURE OF SDS VALVES EARLY PHASE OPEN (1/4) WITH HIGH DEP.

Procedural changes are not in the scope of this SAMDA analysis.

35 %SGTR 1.970E-03 3.764E-02 STEAM GENERATOR TUBE RUPTURE



KEPCO & KHNP 129

Non-Proprietary

Table 5a (5 of 16)


Fussell-Vesely


36 IPINM-A-IN01A 2.740E-03 3.709E-02 CLASS 1E 120V AC INVERTER IN01A UNAVAILABLE DUE TO T&M


37 DGDGM-D-DGD 1.440E-02 3.537E-02 DG 01D UNAVAILABLE DUE TO MAINTENANCE


38 %LSSB-D 7.320E-03 3.524E-02 LARGE SECONDARY SIDE BREAK (MSIV DOWNSTREAM)


39 WOCHM2B-CH02B 1.976E-02 3.494E-02 ECW CHILLER 02B TRAIN UNAVAILABLE DUE TO T&M


40 PFHBWQ4-SW2OUAT 2.712E-05 3.159E-02 CCF OF PCB BETWEEN UAT & 4.16KV SW01A,1B,1C,1D FAIL TO OPEN


41 MTC-ATWS 1.600E-01 2.977E-02 MODERATE COEFFICIENT The effects of reducing the risk associated with this basic event are evaluated in Section 7.20. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

42 PI-SGTR 2.700E-02 2.948E-02 PRESSURE INDUCED SGTR PROBABILITY UNDER LSSB, ATWS, FWLB

This event would affect a portion of offsite consequences only. The benefit of eliminating this failure mode would be negligible.

43 PFHBO1B-SW01B-H2 6.663E-03 2.921E-02 FAILS TO OPEN OF PCB SW01B-H2 OF 4.16KV SWGR SW01B FROM UAT



KEPCO & KHNP 130

Non-Proprietary

Table 5a (6 of 16)


Fussell-Vesely


44 AFOPV-S-AFAS-FW 5.900E-03 2.892E-02 OPERATOR FAILS TO RECOVER AFAS

Procedural changes are not in the scope of this SAMDA analysis

45 SISPP-S-IRWST 1.219E-05 2.445E-02 FAILURE OF IRWST SUMP DUE TO PLUGGING


46 DGDGR-C-DGC 2.492E-02 2.429E-02 FAILS TO RUN OF EMERGENCY DIESEL GENERATOR DG01C


47 %RVR 3.060E-08 2.363E-02 REACTOR VESSEL RUPTURE Initiating event – no impact on SAMDA analysis.

48 WOCHS2B-CH02B 1.299E-02 2.197E-02 ECW CHILLER CH02B FAILS TO START ON DEMAND


49 DGDGM-C-DGC 1.440E-02 2.156E-02 DG 01C UNAVAILABLE DUE TO MAINTENANCE


50 WOCHM2A-CH02A 1.976E-02 1.891E-02 ECW CHILLER 02A TRAIN UNAVAILABLE DUE TO T&M


51 SXMPM2B-PP02B 1.320E-02 1.788E-02 ESW PUMP PP02B UNAVAILABLE DUE TO T/M



KEPCO & KHNP 131

Non-Proprietary

Table 5a (7 of 16)


Fussell-Vesely


52 NBHBC2A-SW03N-F2 6.663E-03 1.748E-02 FAILS TO CLOSE OF FEEDER BKR SW03N-F2 FROM AAC BUS SW03N TO 1E BUS SW01C


53 PFHBC2A-SW01C-E2 6.663E-03 1.748E-02 FAILS TO CLOSE OF FEEDER BKR SW01C-E2 FROM AAC BUS SW03N TO 1E BUS SW01C


54 CVOPH-S-RCPSEAL 1.100E-02 1.697E-02 OPERATOR FAILS TO RECOVER RCP SEAL COOLING (CCW CONNECT. OR AUX. CHG PUMP)


55 PFHBO1A-SW01A-H2 6.663E-03 1.696E-02 FAILS TO OPEN OF PCB SW01A-H2 OF 4.16KV SWGR SW01A FROM UAT


56 %LOOP-PL 1.830E-03 1.626E-02 PLANT-CENTERED LOOP Initiating event – no impact on SAMDA analysis.

57 MSAVO-B-110 4.199E-03 1.589E-02 FAILS TO OPEN MS AFW TDP PP01A TBN STM. SUPPLY AOV 110


58 PFHBO2B-SW01D-G2 6.663E-03 1.573E-02 FAILS TO OPEN OF PCB SW01D-G2 OF 4.16KV SWGR SW01D FROM UAT


59 DGDGL-B-DGB 3.775E-03 1.540E-02 DG B FAILS TO LOAD AND RUN DURING 1ST 1HR OF OPERATION



KEPCO & KHNP 132

Non-Proprietary

Table 5a (8 of 16)


Fussell-Vesely


60 DATGM-S-AACTG 5.000E-02 1.490E-02 AAC DG UNAVAILABLE DUE TO MAINTENANCE


61 HR-RCSCD1-ISOL 1.400E-03 1.477E-02 OPERATOR FAILS TO TAKE ACTION FOR SG COOLDOWN, RC DEPRESS AND SG ISOLATION


62 HR-RCSCD2-CD 1.000E+00 1.474E-02 OPERATOR FAILS TO TAKE ACTION FOR SG COOLDOWN, RC DEPRESS WITH COMPLETE DEP.


63 %FWLB 1.740E-03 1.462E-02 FEEDWATER LINE BREAK Initiating event – no impact on SAMDA analysis.



65 DGDGR-A-DGA 2.492E-02 1.270E-02 FAILS TO RUN OF EMERGENCY DIESEL GENERATOR DG01A


66 FWOPH-S-ERY 5.500E-03 1.248E-02 OPERATOR FAILS TO ALIGN STARTUP FEEDWATER PUMP PP07 (EARLY PHASE)


67 DGDGKQ4-DG01ABCD 4.634E-05 1.237E-02 4/4 CCF OF EDG 01A/01B/01C/01D FAIL TO RUN



KEPCO & KHNP 133

Non-Proprietary

Table 5a (9 of 16)


Fussell-Vesely


68 WOCHS1A-CH01A 1.299E-02 1.237E-02 ECW CHILLER CH01A FAILS TO START ON DEMAND


69 FWMPM-S-PP07 6.900E-03 1.222E-02 START-UP FW PUMP PP07 UNAVAILABLE DUE TO T&M


70 RCOPH-S-SDSE-FW-MD

1.507E-01 1.216E-02 FAILURE OF SDS VALVES EARLY PHASE OPEN (1/4) WITH MEDIUM DEP.


71 %LOFW 6.550E-02 1.213E-02 LOSS OF MAIN FEEDWATER Initiating event – no impact on SAMDA analysis.

72 %LOCV 5.570E-02 1.206E-02 LOSS OF CONDENSER VACCUM Initiating event – no impact on SAMDA analysis.

73 FWOPH-S-ERY-CD 1.000E+00 1.206E-02 OPERATOR FAILS TO ALIGN STARTUP FEEDWATER PUMP PP07 (EARLY PHASE) WITH COMPLETE DEP.


74 DCBTM-D-BT01D 2.820E-03 1.187E-02 CLASS 1E 125V DC BATTERY BT01D UNAVAILABLE DUE TO T&M


75 PFHBO2A-SW01C-C2 6.663E-03 1.158E-02 FAILS TO OPEN OF PCB SW01C-C2 OF 4.16KV SWGR SW01C FROM UAT



KEPCO & KHNP 134

Non-Proprietary

Table 5a (10 of 16)


Fussell-Vesely




77 CSMVWD2-003/004 3.039E-05 1.142E-02 CCF (FTO) OF ISOL. MOV 003/004 IN CS TRS HX DISCH. PATH


78 DGDGS-B-DGB 2.890E-03 1.133E-02 FAILS TO START OF EMERGENCY DIESEL GENERATOR DG01B


79 IPINM-D-IN01D 2.740E-03 1.066E-02 CLASS 1E 120V AC INVERTER IN01D UNAVAILABLE DUE TO T&M


80 WOMPM2B-PP02B 6.900E-03 1.053E-02 ECW PP02B TRAIN UNAVAILABLE DUE TO T&M


81 AFMPM2A-MDP02A 3.630E-03 1.049E-02 AFW MDP PP02A UNAVAILABLE DUE TO T/M



KEPCO & KHNP 135

Non-Proprietary

Table 5a (11 of 16)


Fussell-Vesely


82 AFTPKD2-TDP01A/B 8.197E-04 1.032E-02 2/2 CCF OF FOR AFW TDP PP01/A/B FAIL TO RUN


83 RAC-12H-WE 1.970E-01 1.020E-02 NON-RECOVERY PROBABILITY OF OFFSITE POWER WITHIN 9.5HR (WEATHER RELATED)


84 WOCHWQ4-CH01A/2A/1B/2B

4.377E-05 9.798E-03 DEMAND CCF OF ECW CHILLERS 1A/2A/1B/2B


85 AFTPS1A-TDP01A 6.481E-03 9.556E-03 FAILS TO START AFW TDP PP01A The component associated with this basic event is evaluated in Section 7.3. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

86 DCBTM-C-BT01C 2.820E-03 9.366E-03 CLASS 1E 125V DC BATTERY BT01C UNAVAILABLE DUE TO T&M


87 WOOPH-B-1/2B 1.700E-02 9.211E-03 OPERATOR FAILS TO OPERATE ECW PUMPS PP01/2B


88 WOOPH-A-1/2A 1.700E-02 8.862E-03 OPERATOR FAILS TO OPERATE ECW PUMPS PP01/2A



KEPCO & KHNP 136

Non-Proprietary

Table 5a (12 of 16)


Fussell-Vesely


89 VDHVZO8-HV12/13ABCD

3.234E-05 8.613E-03 8/8 CCF OF RUN FOR EDG ROOM CUBICLE COOLER HV12A, 12B, 12C, 12D 13A, 13B, 13C, 14D FOR 1HR


90 DGDGL-D-DGD 3.775E-03 8.515E-03 DG D FAILS TO LOAD AND RUN DURING 1ST 1HR OF OPERATION


91 CSMPM2B-PP01B 7.050E-03 8.457E-03 CS PUMP PP01B UNAVAILABLE DUE TO MAINTENANCE


92 VDHVKO8-HV12/13ABCD

3.150E-05 8.389E-03 8/8 CCF OF RUN FOR EDG ROOM CUBICLE COOLER HV12A, 12B, 12C, 12D 13A, 13B, 13C, 14D


93 IPINM-C-IN01C 2.740E-03 8.209E-03 CLASS 1E 120V AC INVERTER IN01C UNAVAILABLE DUE TO T&M


94 SXMPM2A-PP02A 1.320E-02 7.994E-03 ESW PUMP PP02A UNAVAILABLE DUE TO T/M



KEPCO & KHNP 137

Non-Proprietary

Table 5a (13 of 16)


Fussell-Vesely


95 DGDGL-A-DGA 3.775E-03 7.969E-03 DG A FAILS TO LOAD AND RUN DURING 1ST 1HR OF OPERATION


96 AFOPH-S-ALT-LT 9.100E-04 7.938E-03 OPERATOR FAILS TO ALIGN FOR SUPPLYING AN ALTERNATE SOURCE


97 RCOPH-S-SDSL-LD 5.789E-02 7.865E-03 FAILURE OF SDS VALVES (1/4) LATE PHASE OPEN WITH LOW DEP.


98 RAC-16H-GR 1.010E-02 7.730E-03 NON-RECOVERY PROBABILITY OF OFFSITE POWER WITHIN 16HR (GRID RELATED)


99 AFTPM1A-TDP01A 5.330E-03 7.722E-03 AFW TDP PP01A UNAVAILABLE DUE TO T/M


100 %LLOCA-HL2 5.050E-07 7.617E-03 LARGE LOCA IN HOT LEG 2 (SDC LOOP2)


101 AFTPS1B-TDP01B 6.481E-03 7.073E-03 FAILS TO START AFW TDP PP01B The component associated with this basic event is evaluated in Section 7.3. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

102 AFPVKQ4-TP01A/B/MP02A/B

4.118E-06 7.007E-03 4/4 CCF OF AFW TDP01A/B, MDP02A/B DUE TO THE VOLUTE FAIL TO RUN



KEPCO & KHNP 138

Non-Proprietary

Table 5a (14 of 16)


Fussell-Vesely


103 CCMVWD2-097/8 1.852E-05 6.956E-03 2/2 CCF OF CCW MOV 097/098 FOR CS HX. HE01A/B INLET


104 CSMPM2A-PP01A 7.050E-03 6.919E-03 CS PUMP 1 PP01A UNAVAILABLE DUE TO MAINTENANCE


105 VDHVM-B-HV12B 1.996E-03 6.463E-03 CUBICLE COOLER HV12A UNAVAILABLE DUE TO T&M


106 VDHVM-B-HV13B 1.996E-03 6.463E-03 CUBICLE COOLER HV13B UNAVAILABLE DUE TO T&M


107 DGSQA-B-LOADSQ 1.765E-03 6.410E-03 LOAD SEQUENCER A FAILS TO OPERATE


108 DGDGS-D-DGD 2.890E-03 6.370E-03 FAILS TO START OF EMERGENCY DIESEL GENERATOR DG01D



KEPCO & KHNP 139

Non-Proprietary

Table 5a (15 of 16)


Fussell-Vesely


109 AFTPL1A-TDP01A 4.417E-03 6.279E-03 FAILS TO RUN AFW TDP PP01A FOR 1HR


110 EFGXT-A-PM3-GC1 1.440E-03 6.105E-03 FAILURE OF CH. A GC-1 OUTPUT GC1-PM3


111 EFGXT-B-PM3-GC1 1.440E-03 5.927E-03 FAILURE OF CH. B GC-1 OUTPUT GC1-PM3


112 RAC-12H-GR 2.000E-02 5.886E-03 NON-RECOVERY PROBABILITY OF OFFSITE POWER WITHIN 9.5HR (GRID RELATED)


113 CCMPM2B-PP02B 4.720E-03 5.839E-03 CCW PUMP PP02B UNAVAILABLE DUE TO T/M


114 AFTPM1B-TDP01B 5.330E-03 5.677E-03 AFW TDP PP01B UNAVAILABLE DUE TO T/M



KEPCO & KHNP 140

Non-Proprietary

Table 5a (16 of 16)


Fussell-Vesely


115 DGDGS-A-DGA 2.890E-03 5.658E-03 FAILS TO START OF EMERGENCY DIESEL GENERATOR DG01A


116 VOHVM2A-HV33A 1.996E-03 5.567E-03 CUBICLE COOLER HV33A UNAVAILABLE DUE TO T&M


117 WOMPM2A-PP02A 6.900E-03 5.027E-03 ECW PP02A TRAIN UNAVAILABLE DUE TO T&M


118 VDHVWO8-HV12/13ABCD

1.886E-05 5.002E-03 8/8 CCF OF START FOR EDG ROOM CUBICLE COOLER HV12A, 12B, 12C, 12D 13A, 13B, 13C, 14D



KEPCO & KHNP 141

Non-Proprietary

Table 5b (1 of 9) List of Basic Events from APR1400 PRA CDF Importance Analysis (At-Power Internal Flooding Events)


Fussell-Vesely








4 AFMVC1A-045 5.783E-02 7.330E-02 AFW ISOL. MOV 0045 FAILS TO CLOSE FOR CYCLING OPERATION


5 AFMVO1A-045 5.783E-02 7.330E-02 AFW ISOL. MOV 045 FAILS TO OPEN FOR CYCLING OPERATION




7 AFMVO1B-046 5.783E-02 6.380E-02 AFW ISOL. MOV 046 FAILS TO OPEN FOR CYCLING OPERATION



KEPCO & KHNP 142

Non-Proprietary

Table 5b (2 of 9)


Fussell-Vesely


8 AFMVC1B-046 5.783E-02 6.380E-02 AFW ISOL. MOV 046 FAILS TO CLOSE FOR CYCLING OPERATION


9 RCOPH-S-SDSE-FW 9.100E-03 6.110E-02 FAILURE OF SDS VALVES EARLY PHASE OPEN (1/4)


10 PFHBWQ3-SW2OUATACD

1.646E-05 6.010E-02 3/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01A,1C,1D FAIL TO OPEN


11 PFHBWQ3-SW2OUATBCD

1.646E-05 5.410E-02 3/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01B,1C,1D FAIL TO OPEN


12 PFHBWQ2-SW2OUATAC

6.017E-05 4.990E-02 2/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01A,1C FAIL TO OPEN





15 PFHBWQ2-SW2OUATBD

6.017E-05 4.590E-02 2/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01B,1D FAIL TO OPEN



KEPCO & KHNP 143

Non-Proprietary

Table 5b (3 of 9)


Fussell-Vesely




17 PFHBO2B-SW01D-G2 6.663E-03 4.520E-02 FAILS TO OPEN OF PCB SW01D-G2 OF 4.16KV SWGR SW01D FROM UAT

The component associated with this basic event is evaluated in Section 7. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

18 AFTPR1B-TDP01B 3.518E-02 4.220E-02 FAILS TO RUN AFW TDP PP01B The component associated with this basic event is evaluated in Section 7.3. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.





21 PFHBWQ3-SW2OUATABC

1.646E-05 3.220E-02 3/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01A,1B,1C FAIL TO OPEN


22 SXMPM2A-PP02A 1.320E-02 3.070E-02 ESW PUMP PP02A UNAVAILABLE DUE TO T/M



KEPCO & KHNP 144

Non-Proprietary

Table 5b (4 of 9)


Fussell-Vesely




24 SXMPM2B-PP02B 1.320E-02 2.950E-02 ESW PUMP PP02B UNAVAILABLE DUE TO T/M




26 FPOPH-1-ISO-FL 1.000E+00 2.540E-02 OPERATOR FAILS TO ISOLATE A FIRE PROTECTION BREAK IN LESS THAN 20 MINUTES


27 WOOPH-B-1/2B 1.700E-02 2.420E-02 OPERATOR FAILS TO OPERATE ECW PUMPS PP01/2B


28 DCBTM-A-BT01A 2.820E-03 2.310E-02 CLASS 1E 125V DC BATTERY BT01A UNAVAILABLE DUE TO T&M


29 DGDGM-D-DGD 1.440E-02 2.220E-02 DG 01D UNAVAILABLE DUE TO MAINTENANCE



KEPCO & KHNP 145

Non-Proprietary

Table 5b (5 of 9)


Fussell-Vesely


30 DCBTM-B-BT01B 2.820E-03 2.170E-02 CLASS 1E 125V DC BATTERY BT01B UNAVAILABLE DUE TO T&M


31 WOOPH-A-1/2A 1.700E-02 2.150E-02 OPERATOR FAILS TO OPERATE ECW PUMPS PP01/2A


32 DGDGM-C-DGC 1.440E-02 2.000E-02 DG 01C UNAVAILABLE DUE TO MAINTENANCE






35 PFHBC1A-SW01A-A2 6.663E-03 1.690E-02 FAILS TO CLOSE OF PCB SW01A-A2 OF 4.16KV SWGR SW01A


36 IPINM-A-IN01A 2.740E-03 1.650E-02 CLASS 1E 120V AC INVERTER IN01A UNAVAILABLE DUE TO T&M



KEPCO & KHNP 146

Non-Proprietary

Table 5b (6 of 9)


Fussell-Vesely


37 IPINM-B-IN01B 2.740E-03 1.530E-02 CLASS 1E 120V AC INVERTER IN01B UNAVAILABLE DUE TO T&M


38 WOMPM2A-PP02A 6.900E-03 1.530E-02 ECW PP02A TRAIN UNAVAILABLE DUE TO T&M


39 PFHBWQ3-SW2OUATABD

1.646E-05 1.510E-02 3/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01A,1B,1D FAIL TO OPEN


40 PFHBC1B-SW01B-A2 6.663E-03 1.490E-02 FAILS TO CLOSE OF PCB SW01B-A2 OF 4.16KV SWGR SW01B


41 WOMPM2B-PP02B 6.900E-03 1.470E-02 ECW PP02B TRAIN UNAVAILABLE DUE TO T&M


42 NPXHM-N-SAT02N 1.750E-03 1.460E-02 SAT TR02N UNAVAILABLE DUE TO MAINTENANCE


43 NPXHM-M-SAT02M 1.750E-03 1.370E-02 SAT TR02M UNAVAILABLE DUE TO MAINTENANCE



KEPCO & KHNP 147

Non-Proprietary

Table 5b (7 of 9)


Fussell-Vesely


44 RCPVO-C-201 3.543E-03 1.150E-02 POSRV V200 FAILS TO OPEN (HARDWARE FAIL)


45 RCPVO-A-200 3.543E-03 1.150E-02 POSRV V201 FAILS TO OPEN (HARDWARE FAIL)




47 CCMPM2A-PP02A 4.720E-03 1.010E-02 CCW PUMP PP02A UNAVAILABLE DUE TO T/M


48 RCPVO-B-202 3.543E-03 1.010E-02 POSRV V202 FAILS TO OPEN (HARDWARE FAIL)


49 RCPVO-D-203 3.543E-03 1.010E-02 POSRV V203 FAILS TO OPEN (HARDWARE FAIL)


50 DGDGM-B-DGB 1.440E-02 1.010E-02 DG 01B UNAVAILABLE DUE TO MAINTENANCE



KEPCO & KHNP 148

Non-Proprietary

Table 5b (8 of 9)


Fussell-Vesely


51 AFMPM2B-MDP02B 3.630E-03 9.950E-03 AFW MDP PP02B UNAVAILABLE DUE TO T/M




53 CCMPM2B-PP02B 4.720E-03 9.710E-03 CCW PUMP PP02B UNAVAILABLE DUE TO T/M


54 CSMPM2A-PP01A 7.050E-03 7.480E-03 CS PUMP 1 PP01A UNAVAILABLE DUE TO MAINTENANCE


55 PFHBWQ2-SW2OUATBC

6.017E-05 6.970E-03 2/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01B,1C FAIL TO OPEN



57 PFHBWQ2-SW2OUATAD

6.017E-05 6.910E-03 2/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01A,1D FAIL TO OPEN



KEPCO & KHNP 149

Non-Proprietary

Table 5b (9 of 9)


Fussell-Vesely



59 CSMPM2B-PP01B 7.050E-03 5.750E-03 CS PUMP PP01B UNAVAILABLE DUE TO MAINTENANCE






62 DGDGL-D-DGD 3.775E-03 5.120E-03 DG D FAILS TO LOAD AND RUN DURING 1ST 1HR OF OPERATION


63 VOHVM1B-HV33B 1.996E-03 5.060E-03 CUBICLE COOLER HV33B UNAVAILABLE DUE TO T&M


64 PFHBC2A-SW01C-A2 6.663E-03 5.000E-03 FAILS TO CLOSE OF PCB SW01C-A2 OF 4.16KV SWGR SW01C



KEPCO & KHNP 150

Non-Proprietary

Table 5c (1 of 10) List of Basic Events from APR1400 PRA CDF Importance Analysis (At-Power Fire Events)


Fussell-Vesely


1 ASD-CDF 1.000E-01 4.370E-01 ALTERNATE SHUTDOWN FAILURE PROBABILITY FOR CDF

This event represents operator actions and procedural changes are not in the scope of this SAMDA analysis.

2 #F157-AMCR-4-4 2.359E-06 1.799E-01 Trans Fire, Supp. Fails, ASD Fire frequency for compartment – no impact on SAMDA analysis.

3 SHR1-E12TD 1.000E+00 1.378E-01 UNRECOVERABLE SBO LEADS TO TDAFW PUMP FAILURE


4 #F157-AMCR-3-4 1.516E-06 1.156E-01 Safety Console Fire, Supp. Fails, ASD Fire frequency for compartment – no impact on SAMDA analysis.


6 PFGRID 5.300E-03 8.536E-02 GRID COLLAPSE ON TURBINE TRIP The component associated with this basic event is evaluated in Section 710. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

7 F-WOOPH-S-CROSSTIE-A

5.000E-01 6.956E-02 OPERATOR FAILS TO OPEN 1025A AND ALIGN FLOW PATH


8 AFTPR1B-TDP01B 3.675E-02 6.811E-02 FAILS TO RUN AFW TDP PP01B The component associated with this basic event is evaluated in Section 7.3. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

9 RCOPH-S-SDSE-SL 2.900E-02 6.428E-02 FAILURE OF SDS VALVES EARLY PHASE OPEN (2/4)


10 #F157-AMCR-2-4 7.560E-07 5.766E-02 Fire Cont Pnl Fire, Supp. Fails, ASD Fire frequency for compartment – no impact on SAMDA analysis.

11 #F157-AMCR-1-4 7.560E-07 5.766E-02 CCTV Fire, Supp. Fails, ASD Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP 151

Non-Proprietary

Table 5c (2 of 10)


Fussell-Vesely


12 DAMPR-A-PP02 4.984E-02 5.563E-02 AAC FUEL OIL FEED PUMP PP02 FAILS TO RUN


13 #F078-AAFD_F078-AGAD

1.978E-06 5.467E-02 MULTI-COMPARTMENT FIRE FROM F078-AAFD TO F078-AGAD

Fire frequency for compartment – no impact on SAMDA analysis.



15 #F078-A52D-U 3.480E-04 4.225E-02 F078-A52D UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.

16 #F122-T01-U 7.610E-04 3.807E-02 F122-T01 UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.



18 #F000-TB-LOOP2 4.700E-04 2.796E-02 TB FIRES LEADING TO LOOP2 Fire frequency for compartment – no impact on SAMDA analysis.

19 WOMPM5A-PP05A 6.900E-03 2.778E-02 ECW PP05A TRAIN UNAVAILABLE DUE TO TEST OR MAINTENANCE


20 #F157-AMCR-6-4 3.430E-07 2.616E-02 Cable W/C Fire, Supp. Fails, ASD Fire frequency for compartment – no impact on SAMDA analysis.

21 DADGR-S-AACDG 2.605E-02 2.600E-02 AAC DG FAILS TO RUN The component associated with this basic event is evaluated in Section 7.2. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

22 #F100-T15-U 5.390E-04 2.533E-02 F100-T15 UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP 152

Non-Proprietary

Table 5c (3 of 10)


Fussell-Vesely


23 AFOPV-S-AFAS-TR 1.000E-02 2.402E-02 OPERATOR FAILS TO RECOVER AFAS


24 PR 9.160E-04 2.316E-02 POSRV FAILS TO RECLOSE The component associated with this basic event is evaluated in Section 7.12. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

25 ASD-CDF-MCA 1.000E-02 2.315E-02 ALTERNATE SHUTDOWN FAILURE PROBABILITY FOR MCA CDF




27 #F120-A05C-U 2.980E-04 2.164E-02 F120-A05C UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.





30 RCOPH-S-SDSE-SL-MD

2.286E-01 2.014E-02 FAILURE OF SDS VALVES EARLY PHASE OPEN (2/4) WITH MEDIUM DEPENDENCY


31 #F078-AGAD_F078-AAFD

7.079E-07 1.950E-02 MULTI-COMPARTMENT FIRE FROM F078-AGAD TO F078-AAFD

Fire frequency for compartmentno impact on SAMDA analysis.



KEPCO & KHNP 153

Non-Proprietary

Table 5c (4 of 10)


Fussell-Vesely


33 SEAL-AFSUC 1.160E-03 1.651E-02 SEAL FAILURE PROBABILITY (SECONDARY HEAT REMOVAL SUCCESS)










38 DGDGKQ4-DG01ABCD 4.846E-05 1.502E-02 CCF OF EDG 01A/01B/01C/01D FAIL TO RUN


39 VOHVS2A-HV33A 3.860E-03 1.465E-02 FAILS TO START OF MAFP ROOM A CUBICLE COOLER HV33A


40 #F078-A19B-U 7.240E-04 1.395E-02 F078-A19B UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.

41 #F078-AEEB-U 1.350E-04 1.386E-02 F078-AEEB UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP 154

Non-Proprietary

Table 5c (5 of 10)


Fussell-Vesely




43 #F055-AGAC-U 2.010E-04 1.371E-02 F055-AGAC UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.

44 RCOPH-S-SDSE-SL-LD 1.450E-01 1.351E-02 FAILURE OF SDS VALVES EARLY PHASE OPEN (2/4) WITH LOW DEPENDENCY


45 #F100-AEEB-U 3.010E-04 1.306E-02 F100-AEEB UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.








50 FWOPH-S-ERY 1.000E-02 1.110E-02 OPERATOR FAILS TO ALIGN STARTUP FEEDWATER PUMP PP07 (EARLY PHASE)



KEPCO & KHNP 155

Non-Proprietary

Table 5c (6 of 10)


Fussell-Vesely


51 DADGM-S-AAC 1.260E-02 1.109E-02 AAC DG UNAVAILABLE DUE TO MAINTENANCE


52 FLAG-L-FNB 1.000E+00 1.087E-02 FLAG FOR CONSIDERING THE FAILURE OF LONG TERM 2NDARY HEAT REMOVAL

Flag event – no impact on SAMDA analysis.

53 AFOPH-S-ALT-LT 7.200E-03 1.080E-02 OPERATOR FAILS TO ALIGN FOR SUPPLYING AN ALTERNATE SOURCE


54 DAOPH-S-AACDG 1.200E-02 1.048E-02 OPERATOR FAILS TO PROVIDE 1E 4.16KV SW01A,B,C,D





57 MSAVO-B-110 4.200E-03 9.704E-03 FAILS TO OPEN MS AFW TDP PP01A TBN STM. SUPPLY AOV 110


58 #F000-TB-LOCV2 3.180E-03 9.323E-03 TB FIRES LEADING TO LOCV2 Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP 156

Non-Proprietary

Table 5c (7 of 10)


Fussell-Vesely


59 DGDGM-B-DGB 1.440E-02 9.211E-03 DG B UNAVAILABLE DUE TO MAINTENANCE






62 #F137-A03C_F157-AMCR

1.160E-06 8.848E-03 MULTI-COMPARTMENT FIRE FROM F137-A03C TO F157-AMCR

Fire frequency for compartmentno impact on SAMDA analysis.

63 #F157-A25C_F157-A17C

1.485E-06 8.685E-03 MULTI-COMPARTMENT FIRE FROM F157-A25C TO F157-A17C


64 VOHVS2B-HV33B 3.860E-03 8.268E-03 FAILS TO START OF MAFP ROOM B CUBICLE COOLER HV33B


65 PFHBWQ4-SW1OSAT 2.711E-05 8.236E-03 CCF OF PCB BETWEEN SAT & 4.16KV SW01A,1B,1C,1D FAIL TO OPEN


66 AFTPM1B-TDP01B 5.330E-03 8.228E-03 AFW TDP PP01B UNAVAILABLE DUE TO T/M



KEPCO & KHNP 157

Non-Proprietary

Table 5c (8 of 10)


Fussell-Vesely




68 AFMPM2B-MDP02B 3.630E-03 7.741E-03 AFW MDP PP02B UNAVAILABLE DUE TO T/M


69 CCOPV-S-NSMV 8.000E-03 7.679E-03 OPERATOR FAILS TO CLOSE CC MOV 143~150 (NON-ESSENTIAL LOAD)


70 CCOPH-S-HX-ALIGN 5.000E-01 7.517E-03 OPERATOR FAILS TO OPEN CCW HX3A/B ISOL. V1145 /6 /ESW SUPPLYING V1027/8, 3014/5


71 #F000-ACVU-U 2.100E-04 7.436E-03 F000-ACVU UNSUPPRESSED FIRES Fire frequency for compartmentno impact on SAMDA analysis.

72 #F120-A15B-U 1.730E-04 7.352E-03 F120-A15B UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.

73 #F000-TB-GTR 3.230E-02 7.283E-03 TB FIRES LEADING TO GTRN Fire frequency for compartment – no impact on SAMDA analysis.



75 EFOPV-S-SIAS 1.000E+00 6.715E-03 OPERATOR FAILS TO MANUALLY INITIATE ALL CHANNELS VIA MCR FOR SIAS





KEPCO & KHNP 158

Non-Proprietary

Table 5c (9 of 10)


Fussell-Vesely


77 #F157-ACPX-U_F157-AMCR

8.690E-07 6.628E-03 MULTI-COMPARTMENT FIRE FROM F157-ACPX TO F157-AMCR




79 MSAVO-A-109 4.200E-03 6.288E-03 FAILS TO OPEN MS AFW TDP PP01B TBN STM. SUPPLY AOV 109


80 #FN-N00 2.757E-03 6.115E-03 AAC D/G BUILDING Fire frequency for compartment – no impact on SAMDA analysis.

81 DGDGM-D-DGD 1.440E-02 5.932E-03 DG D UNAVAILABLE DUE TO MAINTENANCE


82 #F078-AGAC_F078-AGAD

1.395E-06 5.780E-03 MULTI-COMPARTMENT FIRE FROM F078-AGAC TO F078-AGAD


83 #F120-A11B-U 5.450E-05 5.689E-03 F120-A11B Unsuppressed Fires Fire frequency for compartment – no impact on SAMDA analysis.

84 #F157-A25C_F157-A16C

1.485E-06 5.575E-03 MULTI-COMPARTMENT FIRE FROM F157-A25C TO F157-A16C


85 AFTPKD2-TDP01A/B 2.719E-04 5.539E-03 2/2 CCF OF RUNNING AFW TDP PP01/A/B


86 AXVVO-A-V1623 1.920E-04 5.482E-03 FAILS TO OPEN CT SYSTEM MANUAL VALVE V1623



KEPCO & KHNP 159

Non-Proprietary

Table 5c (10 of 10)


Fussell-Vesely


87 WOMPS5A-PP05A 1.360E-03 5.303E-03 FAILS TO START OF ECW PUMP 05A The component associated with this basic event is evaluated in Section 7.18. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

88 VOHVM1B-HV33B 2.480E-03 5.154E-03 CUBICLE COOLER HV33B UNAVAILABLE DUE TO T&M


89 NBHBC-S-SW03N-A2 6.660E-03 5.135E-03 FAILURE TO CLOSE OF SWGR SW03N-A2 FEED BREAKER FROM AAC DG




91 SIOPV-S-SIAS 7.500E-02 5.043E-03 OPERATOR FAILS TO RECOVER FOR SIAS


92 #F078-AGAD-U 3.550E-05 5.031E-03 F078-AGAD UNSUPPRESSED FIRES Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP 160

Non-Proprietary

Table 5d (1 of 6) List of Basic Events from APR1400 PRA CDF Importance Analysis (LPSD Internal Events)


Fussell-Vesely


1 BE-RATE-OT 6.667E-01 5.878E-01 Conversion factor (Outage-yr -> Calendar yr, 1/(18month/12month)) for Demand Fai

Conversion factor – no impact on SAMDA analysis.

2 %SO 2.900E-03 5.519E-01 RCS Overdraining due to SCS Initiating event – no impact on SAMDA analysis.

3 HR-FB-SOP05-01-DE 5.120E-02 2.797E-01 HRA Dependence for RS & FB at SO POS05


4 HR-RS-SOP05 7.642E-03 2.797E-01 Operator Fails to Restore SCS at SO POS05


5 BE-RATE-P05 1.231E-03 1.440E-01 Conversion factor (SD-yr -> Calendar yr) for POS5 duration


6 HR-FB-SOP11-01-DE 5.120E-02 1.258E-01 HRA Dependence for RS & FB at SO POS11


7 HR-RS-SOP11 3.436E-03 1.258E-01 Operator Fails to Restore SCS at SO POS11


8 %SL 2.900E-01 9.478E-02 Failure to Maintain Water Level at Reduced Inventory


9 HR-MI-SOP05 1.899E-03 8.643E-02 Operator Fails To Isolate and Makeup Over-Drainage (SO) Path at POS05


10 HR-FB-SOP05-02-DE 6.367E-02 8.643E-02 HRA Dependence for MI & FB at SO POS05


11 BE-RATE-P03A 3.360E-04 7.140E-02 Conversion factor (SD-yr -> Calendar yr) for POS03A duration


12 %SL1 1.600E-01 5.229E-02 Small LOCA at Reduced Inventory Initiating event – no impact on SAMDA analysis.

13 HR-FB-SLP05-01-DE 5.120E-02 5.163E-02 HRA Dependence for RS & FB at SL POS05


14 HR-RS-SLP05 7.642E-03 5.163E-02 Operator Fails to Restore SCS at SL POS05



KEPCO & KHNP 161

Non-Proprietary

Table 5d (2 of 6)


Fussell-Vesely




16 HR-MI-SOP11 1.249E-03 4.571E-02 Operator Fails To Isolate and Makeup Over-Drainage (SO) PATH at POS11


17 HR-FB-SOP11-02-DE 5.120E-02 4.571E-02 HRA Dependence for MI & FB at SO POS11




19 %LPSW 6.390E-02 4.070E-02 Loss of offsite power of Switchyard-centered for LPSD




21 %PL 3.664E-03 3.586E-02 Stuck Open of POSRV Initiating event – no impact on SAMDA analysis.

22 %S1 1.400E-01 3.562E-02 Loss of SCS (S1) Initiating event – no impact on SAMDA analysis.

23 BE-RATE-P03B 2.743E-03 3.499E-02 Conversion factor (SD-yr -> Calendar yr) for POS03B duration


24 %TS 2.340E-04 3.293E-02 Total Loss of Essential Service Water Initiating event – no impact on SAMDA analysis.

25 %TC 2.340E-04 3.293E-02 Total Loss of Component Cooling Water


26 %LPPL 5.280E-02 3.279E-02 Loss of offsite power of Plant-centered for LPSD


27 HR-RS-JLP05 7.642E-03 2.937E-02 Operator Fails to Restore SCS at JL POS05


28 HR-FB-JLP05-01-DE 5.120E-02 2.937E-02 HRA Dependence for RS & FB at JL POS05


29 %LPWE 3.670E-02 2.742E-02 Loss of offsite power of Weather-related for LPSD



KEPCO & KHNP 162

Non-Proprietary

Table 5d (3 of 6)


Fussell-Vesely


30 %SL2 3.500E-02 2.288E-02 Small LOCA above Reduced Inventory Initiating event – no impact on SAMDA analysis.

31 DGDGR-A-DGA 2.605E-02 1.926E-02 Fails to Run of Emergency Diesel Generator DG01A


32 DGDGR-B-DGB 2.605E-02 1.889E-02 Fails to Run of Emergency Diesel Generator DG01B


33 HR-FB-SLP11-01-DE 5.120E-02 1.823E-02 HRA Dependence for RS & FB at SL POS11


34 HR-RS-SLP11 3.436E-03 1.823E-02 Operator Fails to Restore SCS at SL POS11




36 HR-MI-SLP05 1.899E-03 1.595E-02 Operator Fails To Isolate and Makeup Failing to maintain water level (SL) PATH a


37 HR-FB-SLP05-02-DE 6.367E-02 1.595E-02 HRA Dependence for MI & FB at SL POS05


38 HR-RS-LPP05 3.367E-03 1.293E-02 Operator Fails to Restore SCS at LO POS05


39 HR-FB-LPP05-DE 5.120E-02 1.293E-02 HRA Dependence for RS & FB at LP POS05


40 HR-RS-LPP03B 2.703E-02 1.253E-02 Operator Fails to Restore SCS at LO POS03B



KEPCO & KHNP 163

Non-Proprietary

Table 5d (4 of 6)


Fussell-Vesely


41 HR-SG-LPP03B-DE 5.097E-02 1.253E-02 HRA Dependence for RS & SG at LP POS03B


42 HR-FB-LPP03B-01-DE 5.432E-02 1.252E-02 HRA Dependence for SG & FB at LP POS03B


43 SISPP-S-IRWST 1.219E-05 1.103E-02 Failure of IRWST Sump due to Plugging


44 HR-RS-S1P05 3.367E-03 1.098E-02 Operator Fails to Restore SCS at S1 POS05


45 HR-FB-S1P05-DE 5.120E-02 1.098E-02 HRA Dependence for RS & FB at S1 POS05


46 HR-RS-S1P03B 2.703E-02 1.064E-02 OPERATOR FAILS TO RESTORE SCS AT S1 POS03B


47 HR-SG-S1P03B-DE 5.097E-02 1.064E-02 HRA Dependence for RS & SG at S1 POS03B


48 HR-FB-S1P03B-01-DE 5.432E-02 1.063E-02 HRA Dependence for SG & FB at S1 POS03B




50 HR-RS-JLP11 3.436E-03 1.037E-02 Operator Fails to Restore SCS at JL POS11


51 %KV 3.500E-02 1.029E-02 Loss of Class 1E 4.16KV Initiating event – no impact on SAMDA analysis.

52 HR-MI-JLP05 1.899E-03 9.077E-03 Operator Fails To Isolate and Makeup Unrecoverable LOCA (JL) PATH at POS05



KEPCO & KHNP 164

Non-Proprietary

Table 5d (5 of 6)


Fussell-Vesely


53 HR-FB-JLP05-02-DE 6.367E-02 9.077E-03 HRA Dependence for MI & FB at JL POS05




55 DADGR-S-AACDG 2.605E-02 8.260E-03 AAC DG Fails to Run The component associated with this basic event is evaluated in Section 7.2. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.



57 %LPGR 1.150E-02 7.342E-03 Loss of offsite power of Grid-related for LPSD


58 VKHVS2A-HV11A 3.860E-03 7.166E-03 Fails to Start SI Pump Room Cubicle Cooler HV11A


59 VKHVS2B-HV16B 3.860E-03 7.144E-03 Fails to Start SC Pump Room Cubicle Cooler HV16B


60 %ES 1.860E-02 7.139E-03 Loss of Essential Service Water Initiating event – no impact on SAMDA analysis.





63 %S2 2.200E-02 6.721E-03 Loss of SCS (S2) Initiating event – no impact on SAMDA analysis.


KEPCO & KHNP 165

Non-Proprietary

Table 5d (6 of 6)


Fussell-Vesely


64 HR-FB-SOP05-01 1.265E-03 6.703E-03 Operator Fails to Operate F&B at SO POS05 01


65 HR-MI-SLP11 1.249E-03 6.625E-03 Operator Fails To Isolate and Makeup Failing to maintain water level (SL) PATH a


66 HR-FB-SLP11-02-DE 5.120E-02 6.625E-03 HRA Dependence for MI & FB at SL POS11


67 HR-FB-SOP11-01 1.265E-03 6.606E-03 Operator Fails to Operate F&B at SO POS11 01


68 VKHVS2B-HV11B 3.860E-03 6.582E-03 Fails to Start SI Pump Room Cubicle Cooler HV11B


69 VKHVS2A-HV16A 3.860E-03 6.372E-03 Fails to Start SC Pump Room Cubicle Cooler HV16BA


70 WOCHS2A-CH02A 1.300E-02 6.347E-03 ECW Chiller CH02A Fails to Start on Demand






73 WOCHS2B-CH02B 1.300E-02 5.575E-03 ECW Chiller CH02B Fails to Start on Demand



KEPCO & KHNP 166

Non-Proprietary

Table 5e (1 of 5) List of Basic Events from APR1400 PRA CDF Importance Analysis (LPSD Internal Flooding Events)


Fussell-Vesely


1 SC-PP-A-B-FLOOD 1.000E+00 9.566E-01 Flag to Denote SC Pumps A&B Flood Internal flooding flag – no impact on SAMDA analysis.

2 IE-78-44B-FP-X-L 3.600E-04 7.244E-01 Major FP break in room 078-A44B during LPSD

Internal flooding frequency for room – no impact on SAMDA analysis.



4 SEQ-S2-P06-03 1.000E+00 5.239E-01 S2 POS06 Sequence 03 Indentifier Sequence identifier – no impact on SAMDA analysis.

5 FPOPH-1-ISO-FL 1.000E+00 2.254E-01 Operator fails to isolate FP break with less than 20 minutes available


6 BE-RATE-P10 6.260E-03 2.201E-01 Conversion factor (SD-yr -> Calendar yr) for POS10 duration S2 POS06 Sequence 03 Indentifier


7 SEQ-S2-P10-03 1.000E+00 2.201E-01 S2 POS 10 SEQUENCE 03 IDENTIFIER

Sequence identifier – no impact on SAMDA analysis.

8 HR-FB-S2P10 1.270E-03 2.085E-01 Operator Fails to Operate F&B at S2 POS10


9 IE-100-37B-FP-X 9.940E-05 1.999E-01 Large break of FP piping in room 100-A37B




11 SIMVO2A-636 9.630E-04 1.003E-01 SI Pump 1 Injection Line MOV 636 Fails to Open


12 SIMPS2A-PP02C 9.470E-04 9.864E-02 Fails to Start SI Pump PP02C The component associated with this basic event is evaluated in Section 7.16. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.


KEPCO & KHNP 167

Non-Proprietary

Table 5e (2 of 5)


Fussell-Vesely




14 SEQ-S2-P03A-04 1.000E+00 8.150E-02 S2 POS 3A Sequence 04 Identifier Sequence identifier – no impact on SAMDA analysis.

15 SIVVT2A-V435 5.530E-04 5.760E-02 SI Pump 3 Discharge VV 435 Fails to Remain Open




17 SEQ-S2-P04B-03 1.000E+00 5.536E-02 S2 POS 4B Sequence 03 Identifier Sequence identifier – no impact on SAMDA analysis.

18 HR-FB-S2P04B 1.270E-03 5.029E-02 Operator Fails to Operate F&B at S2 POS04B




20 SEQ-S2-P05-03 1.000E+00 4.611E-02 S2 POS 5 Sequence 03 Identifier Sequence identifier – no impact on SAMDA analysis.



22 PFHBC2A-SW01C-A2 6.660E-03 4.128E-02 Fails to Close of PCB SW01C-A2 of 4.16kV SWGR SW01C


23 VOHVS2A-HV33A 3.860E-03 3.619E-02 Fails to Start of MAFP Room A Cubicle Cooler HV33A


24 SC-PP-A-BUS-FLOOD 1.000E+00 3.575E-02 Flag to Denote SC Pump A Power Supply Flood

Internal flooding flag – no impact on SAMDA analysis.


KEPCO & KHNP 168

Non-Proprietary

Table 5e (3 of 5)


Fussell-Vesely




26 SEQ-S2-P11-03 1.000E+00 3.372E-02 S2 POS 11 Sequence 03 Identifier Sequence identifier – no impact on SAMDA analysis.



28 SIMPR2A-PP02C 2.500E-04 2.603E-02 Fails to Run SI Pump PP02C The component associated with this basic event is evaluated in Section 7.16. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.



30 DGDGR-C-DGC 2.610E-02 1.838E-02 Fails to Run of Emergency Diesel Generator DG01C





33 HR-FB-S2P04A-01 4.550E-03 1.114E-02 Operator Fails to Operate F&B at S2 POS04A 01








KEPCO & KHNP 169

Non-Proprietary

Table 5e (4 of 5)


Fussell-Vesely


37 SEQ-S2-P03B-04 1.000E+00 1.052E-02 S2 POS 3B Sequence 04 Identifier Sequence identifier – no impact on SAMDA analysis.

38 HR-FB-S2P12A 1.270E-03 1.028E-02 Operator Fails to Operate F&B at S2 POS12A


39 PELXY-A-LX06A-P 9.480E-05 9.812E-03 Failure of Primary Loop Controller LX06A


40 SIVVT2A-V130 9.220E-05 9.598E-03 SI Pump 3 Suction VV 130 Fails to Remain Open


41 PFHBC1A-SW01A-A2 6.660E-03 9.302E-03 Fails ro Close of PCB SW01A-A2 of 4.16kV SWGR SW01A


42 HR-SG-S2P03A 1.020E-03 9.151E-03 Operator Fails to Operate SHR with AFW at S2 POS03A


43 AFMPS2A-MDP02A 9.470E-04 8.874E-03 Fails to Start AFW MDP PP02A The component associated with this basic event is evaluated in Section 7.3. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

44 FPOPH-2-ISO-FL 1.000E+00 8.764E-03 Operator fails to isolate FP break with 20-40 minutes available


45 PELXY-B-LX03B-P 9.480E-05 8.405E-03 Failure of Primary Loop Controller LX03C


46 IE-78-10C-FP-X 3.510E-04 7.704E-03 Large break of FP piping in room 078-A10C



KEPCO & KHNP 170

Non-Proprietary

Table 5e (5 of 5)


Fussell-Vesely


47 IE-100-20A-FP-X 3.350E-04 7.349E-03 Large break of FP piping in room 100-A20A


48 SC-PP-B-BUS-FLOOD 1.000E+00 7.339E-03 Flag to Denote SC Pump B Power Supply Flood

Internal flooding flag – no impact on SAMDA analysis.



50 FPOPH-3DEP-ISO-FL 1.000E+00 5.439E-03 FP Isolation Failure Dependency Procedural changes are not in the scope of this SAMDA analysis.



52 IE-137-29B-FP-M 2.660E-06 5.314E-03 Moderate break of FP piping in room 137-A29B


53 DGDGR-A-DGA 2.610E-02 5.005E-03 Fails to Run of Emergency Diesel Generator DG01A



KEPCO & KHNP 171

Non-Proprietary

Table 5f (1 of 11) List of Basic Events from APR1400 PRA CDF Importance Analysis (LPSD Fire Events)


Fussell-Vesely




2 SEQ-KV-P05-03 1.000E+00 2.710E-01 KV POS 5 SEQUENCE 03 IDENTIFIER Sequence identifier – no impact on SAMDA analysis.

3 HR-RS-KVP05 1.000E+00 2.709E-01 Operator Fails to Restore SCS at KV POS05


4 HR-FB-KVP05 7.141E-04 2.709E-01 OPERATOR FAILS TO OPERATE F&B AT KV POS05


5 COMBINATION_113 7.100E+01 2.709E-01 HEP DEPENDENCY FACTOR FOR HR-RS-KVP05 AND HR-FB-KVP05


6 %F000-ADGC 4.650E-03 1.950E-01 FIRE IN DIESEL GENERATOR ROOM Fire frequency for compartment – no impact on SAMDA analysis.







10 SEQ-LP-P10-03 1.000E+00 8.919E-02 LP POS 10 SEQUENCE 03 IDENTIFIER


11 SEQ-CC-P05-03 1.000E+00 8.691E-02 CC POS 5 SEQUENCE 03 IDENTIFIER


12 HR-RS-CCP05 1.000E+00 8.689E-02 OPERATOR FAILS TO RESTORE SCS AT CC POS05


13 HR-FB-CCP05 8.731E-04 8.688E-02 OPERATOR FAILS TO OPERATE F&B AT CC POS05


14 COMBINATION_24 5.820E+01 8.687E-02 HEP DEPENDENCY FACTOR FOR HR-RS-CCP05 AND HR-FB-CCP05



KEPCO & KHNP 172

Non-Proprietary

Table 5f (2 of 11)


Fussell-Vesely




16 %F078-AGAC 4.940E-04 7.169E-02 FIRE IN GENERAL ACCESS AREA Fire frequency for compartment – no impact on SAMDA analysis.

17 SEQ-S2-P05-03 1.000E+00 7.091E-02 S2 POS 5 SEQUENCE 03 IDENTIFIER Sequence identifier – no impact on SAMDA analysis.

18 HR-RS-S2P05 1.000E+00 7.090E-02 OPERATOR FAILS TO RESTORE SCS AT S2 POS05


19 HR-FB-S2P05 8.731E-04 7.089E-02 OPERATOR FAILS TO OPERATE F&B AT S2 POS05


20 COMBINATION_171 5.820E+01 7.089E-02 HEP DEPENDENCY FACTOR FOR HR-RS-S2P05 AND HR-FB-S2P05


21 SEQ-KV-P12A-03 1.000E+00 6.813E-02 KV POS 12A SEQUENCE 03 IDENTIFIER


22 HR-RS-KVP12A 1.000E+00 6.799E-02 OPERATOR FAILS TO RESTORE SCS AT KV POS12A


23 HR-FB-KVP12A 8.731E-04 6.798E-02 OPERATOR FAILS TO OPERATE F&B AT KV POS12A


24 COMBINATION_117 5.820E+01 6.798E-02 HEP DEPENDENCY FACTOR FOR HR-RS-KVP12A AND HR-FB-KVP12A


25 SEQ-LP-P03B-04 1.000E+00 6.198E-02 LP POS 3B SEQUENCE 04 IDENTIFIER


26 BF_F078-AGAC_F078-AGAD

9.800E-03 5.532E-02 BARRIER FAILURE BETWEEN F078-AGAC AND F078-AGAD





KEPCO & KHNP 173

Non-Proprietary

Table 5f (3 of 11)


Fussell-Vesely


28 %F000-ADGD 4.650E-03 4.643E-02 FIRE IN DIESEL GENERATOR ROOM Fire frequency for compartment – no impact on SAMDA analysis.

29 HR-RS-LPP03B 1.000E+00 4.619E-02 OPERATOR FAILS TO RESTORE SCS AT LO POS03B


30 HR-FB-LPP03B-01 3.479E-03 4.600E-02 OPERATOR FAILS TO OPERATE F&B AT LP POS03B 01


31 HR-SG-LPP03B 1.150E-03 4.329E-02 OPERATOR FAILS TO OPERATE SHR WITH AFW AT LP POS03B


32 COMBINATION_130 1.920E+03 4.303E-02 HEP DEPENDENCY FACTOR FOR HR-RS-LPP03B, HR-SG-LPP03B AND HR-FB-LPP03B-01


33 %FK-K01 7.290E-04 3.805E-02 FIRE IN ESW STRUCTURE "A" BUILDING


34 SEQ-KV-P04B-03 1.000E+00 3.785E-02 KV POS 4B SEQUENCE 03 IDENTIFIER


35 HR-FB-KVP04B 8.731E-04 3.781E-02 OPERATOR FAILS TO OPERATE F&B AT KV POS04B


36 HR-RS-KVP04B 1.149E-01 3.778E-02 OPERATOR FAILS TO RESTORE SCS AT KV POS04B


37 COMBINATION_112 5.820E+01 3.777E-02 HEP DEPENDENCY FACTOR FOR HR-RS-KVP04B AND HR-FB-KVP04B


38 %F137-ANEA 7.340E-04 3.555E-02 FIRE IN ELECTRICAL EQUIPMENT ROOM


39 SEQ-CC-P12A-03 1.000E+00 3.197E-02 CC POS 12A SEQUENCE 03 IDENTIFIER



KEPCO & KHNP 174

Non-Proprietary

Table 5f (4 of 11)


Fussell-Vesely


40 HR-RS-CCP12A 1.000E+00 3.197E-02 OPERATOR FAILS TO RESTORE SCS AT CC POS12A


41 HR-FB-CCP12A 8.731E-04 3.197E-02 OPERATOR FAILS TO OPERATE F&B AT CC POS12A


42 COMBINATION_28 5.820E+01 3.196E-02 HEP DEPENDENCY FACTOR FOR HR-RS-CCP12A AND HR-FB-CCP12A


43 DADGR-S-AACDG 2.610E-02 2.874E-02 AAC DG FAILS TO RUN The component associated with this basic event is evaluated in Section 7.2. A design change would be expected to cost more than the total maximum cost reduction and, as a result, not provide a positive benefit.

44 %F078-A19B 9.260E-04 2.717E-02 FIRE IN CORRIDOR Fire frequency for compartment – no impact on SAMDA analysis.

45 %F120-AGAC 6.140E-04 2.703E-02 FIRE IN GENERAL ACCESS AREA-120' C


46 %F078-A04C 5.260E-04 2.670E-02 FIRE IN MISC. ELECTRICAL EQUIP RM




48 %F055-AGAC 6.260E-04 2.591E-02 FIRE IN GENERAL ACCESS AREA-55' C


49 SEQ-LP-P06-03 1.000E+00 2.531E-02 LP POS 6 SEQUENCE 03 IDENTIFIER Sequence identifier – no impact on SAMDA analysis.

50 SEQ-LP-P05-03 1.000E+00 2.408E-02 LP POS 5 SEQUENCE 03 IDENTIFIER Sequence identifier – no impact on SAMDA analysis.

51 %F120-AGAD 6.490E-04 2.203E-02 FIRE IN GENERAL ACCESS AREA-120' D





KEPCO & KHNP 175

Non-Proprietary

Table 5f (5 of 11)


Fussell-Vesely


53 SEQ-S2-P12A-03 1.000E+00 2.052E-02 S2 POS 12A SEQUENCE 03 IDENTIFIER


54 HR-RS-S2P12A 1.000E+00 2.051E-02 OPERATOR FAILS TO RESTORE SCS AT S2 POS12A


55 HR-FB-S2P12A 8.731E-04 2.051E-02 OPERATOR FAILS TO OPERATE F&B AT S2 POS12A


56 COMBINATION_175 5.820E+01 2.051E-02 HEP DEPENDENCY FACTOR FOR HR-RS-S2P12A AND HR-FB-S2P12A


57 %FD-D01A 4.140E-04 2.034E-02 FIRE IN CCW HEAT EXCHANGER "A" BUILDING


58 %F078-AGAD 1.440E-04 1.935E-02 FIRE IN GENERAL ACCESS AREA Fire frequency for compartment – no impact on SAMDA analysis.

59 SEQ-CC-P03B-04 1.000E+00 1.826E-02 CC POS 3B SEQUENCE 04 IDENTIFIER


60 HR-FB-CCP03B-01 2.959E-02 1.821E-02 OPERATOR FAILS TO OPERATE F&B AT CC POS03B 01


61 HR-FB-LPP05 7.141E-04 1.800E-02 OPERATOR FAILS TO OPERATE F&B AT LP POS05


62 HR-RS-LPP05 1.408E-01 1.799E-02 OPERATOR FAILS TO RESTORE SCS AT LO POS05


63 COMBINATION_141 7.100E+01 1.799E-02 HEP DEPENDENCY FACTOR FOR HR-RS-LPP05 AND HR-FB-LPP05


64 HR-RS-CCP03B 1.000E+00 1.780E-02 OPERATOR FAILS TO RESTORE SCS AT CC POS03B



KEPCO & KHNP 176

Non-Proprietary

Table 5f (6 of 11)


Fussell-Vesely


65 PROB-NON-SUPP-MCR

4.650E-02 1.742E-02 PROBABILITY OF NON-SUPPRESSION OF MCR FIRES RESULTING IN MCR EVACUATION

Factor – no impact on SAMDA analysis.

66 BF_F120-AGAC_F120-AGAD

1.200E-03 1.732E-03 BARRIER FAILURE BETWEEN F120-AGAC AND F120-AGAD


67 %F157-AMCR 1.220E-04 1.692E-02 FIRE IN MAIN CONTROL ROOM Fire frequency for compartment – no impact on SAMDA analysis.



69 SEQ-S2-P03B-04 1.000E+00 1.678E-02 S2 POS 3B SEQUENCE 04 IDENTIFIER


70 SEQ-JL-P10-03 1.000E+00 1.674E-02 JL POS 10 SEQUENCE 03 IDENTIFIER


71 HR-FB-JLP10-01 1.603E-03 1.622E-02 OPERATOR FAILS TO OPERATE F&B AT JL POS10 01


72 %F078-A05C 3.920E-04 1.613E-02 FIRE IN CHANNEL-C DC & IP EQUIP RM


73 HR-RS-S2P03B 1.000E+00 1.613E-02 OPERATOR FAILS TO RESTORE SCS AT S2 POS03B


74 BF_F078-AGAD_F078-AGAC

9.800E-03 1.612E-02 BARRIER FAILURE BETWEEN F078-AGAD AND F078-AGAC


75 %F100-AEEA 3.210E-04 1.605E-02 FIRE IN 480V CLASS 1E MCC 01A RM Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP 177

Non-Proprietary

Table 5f (7 of 11)


Fussell-Vesely


76 %F078-A03C 3.140E-04 1.588E-02 FIRE IN CLASS 1E LOADCENTER 01C RM


77 %F000-TB 9.130E-04 1.524E-02 FIRE IN TURBINE GENERATOR AREA RESULTING IN LOOP


78 HR-SG-CCP03B 1.150E-03 1.517E-02 OPERATOR FAILS TO OPERATE SHR WITH AFW AT CC POS03B


79 COMBINATION_16 1.170E+02 1.514E-02 HEP DEPENDENCY FACTOR FOR HR-RS-CCP03B, HR-SG-CCP03B AND HR-FB-CCP03B-01


80 SEQ-JL-P10-05 1.000E+00 1.486E-02 JL POS 10 SEQUENCE 05 IDENTIFIER


81 SEQ-JL-P06-03 1.000E+00 1.429E-02 JL POS 6 SEQUENCE 03 IDENTIFIER Sequence identifier – no impact on SAMDA analysis.



83 HR-FB-S2P03B-01 2.880E-02 1.348E-02 OPERATOR FAILS TO OPERATE F&B AT S2 POS03B 01


84 AS-CCDP-ST 5.000E-01 1.343E-02 SHORT TERM ALTERNATE SHUTDOWN CCDP EST. (< = 1.5 HRS FOR RS OR <= 3 HRS FOR SG)


85 HR-SG-S2P03B 1.150E-03 1.278E-02 OPERATOR FAILS TO OPERATE SHR WITH AFW AT S2 POS03B


86 COMBINATION_159 1.190E+02 1.273E-02 HEP DEPENDENCY FACTOR FOR HR-RS-S2P03B, HR-SG-S2P03B AND HR-FB-S2P03B-01


87 SEQ-CC-P04B-03 1.000E+00 1.219E-02 CC POS 4B SEQUENCE 03 IDENTIFIER


88 HR-FB-CCP04B 1.603E-03 1.218E-02 OPERATOR FAILS TO OPERATE F&B AT CC POS04B



KEPCO & KHNP 178

Non-Proprietary

Table 5f (8 of 11)


Fussell-Vesely


89 HR-RS-CCP04B 1.140E-01 1.215E-02 OPERATOR FAILS TO RESTORE SCS AT CC POS04B


90 %F078-AEEB 4.120E-04 1.215E-02 FIRE IN CLASS 1E SWITCHGEAR 01B ROOM


91 COMBINATION_23 3.210E+01 1.215E-02 HEP DEPENDENCY FACTOR FOR HR-RS-CCP04B AND HR-FB-CCP04B


92 %F100-AGAC 2.300E-04 1.194E-02 FIRE IN GENERAL ACCESS AREA Fire frequency for compartment – no impact on SAMDA analysis.

93 %F137-AEPA 2.340E-04 1.164E-02 FIRE IN ELECTRICAL PENETRATION ROOM (A)






96 %F078-A19A 4.740E-04 1.083E-02 FIRE IN CORRIDOR Fire frequency for compartment – no impact on SAMDA analysis.

97 SEQ-S2-P04B-03 1.000E+00 1.034E-02 S2 POS 4B SEQUENCE 03 IDENTIFIER


98 HR-FB-S2P04B 1.603E-03 1.034E-02 OPERATOR FAILS TO OPERATE F&B AT S2 POS04B


99 %F137-A11C 2.090E-04 1.033E-02 FIRE IN ELECTRICAL PENETRATION RM (C)




101 COMBINATION_170 3.210E+01 1.032E-02 HEP DEPENDENCY FACTOR FOR HR-RS-S2P04B AND HR-FB-S2P04B


102 SEQ-LP-P04B-03 1.000E+00 1.018E-02 LP POS 4B SEQUENCE 03 IDENTIFIER



KEPCO & KHNP 179

Non-Proprietary

Table 5f (9 of 11)


Fussell-Vesely


103 %F000-ACVU 3.430E-04 9.847E-03 FIRE IN CVCS SYSTEM AREA Fire frequency for compartment – no impact on SAMDA analysis.

104 %F157-A19C 2.020E-04 9.763E-03 FIRE IN I & C EQUIP. RM Fire frequency for compartment – no impact on SAMDA analysis.

105 COMBINATION_84 1.460E+00 9.613E-03 HEP DEPENDENCY FACTOR FOR HR-MI-JLP10 AND HR-FB-JLP10-02






108 %F055-AGAD 9.370E-04 9.437E-03 FIRE IN GENERAL ACCESS AREA-55' D


109 %F067-T02 5.680E-04 9.228E-03 FIRE IN UNDERGROUND COMMON TUNNEL


110 %F157-A25C 1.810E-04 9.033E-03 FIRE IN I & C EQUIP. RM Fire frequency for compartment – no impact on SAMDA analysis.



112 %F137-A10C 1.810E-04 8.746E-03 FIRE IN 480V CLASS 1E MCC 03C RM Fire frequency for compartment – no impact on SAMDA analysis.

113 %F078-A25A 3.550E-04 8.060E-03 FIRE IN CLASS 1E SWITCHGEAR 01A RM





KEPCO & KHNP 180

Non-Proprietary

Table 5f (10 of 11)


Fussell-Vesely




116 SEQ-LP-P03A-05 1.000E+00 7.451E-03 LP POS 3A SEQUENCE 05 IDENTIFIER


117 %F050-A01C 1.430E-04 7.357E-03 FIRE IN CS PUMP & MINI FLOW HX RM


118 %F050-A02C 1.430E-04 7.195E-03 FIRE IN SI PUMP RM Fire frequency for compartment – no impact on SAMDA analysis.

119 NBHBC-S-SW03N-A2 6.660E-03 7.007E-03 FAIL TO CLOSE OF SWGR SW03N-A2 FEED BREAKER FROM AAC DG


120 SEQ-AS-P06-02 1.000E+00 6.730E-03 AS POS 6 SEQUENCE 02 IDENTIFIER Sequence identifier – no impact on SAMDA analysis.

121 %F100-A08D 7.000E-04 6.682E-03 FIRE IN N1E DC & IP EQUIPMENT RM Fire frequency for compartment – no impact on SAMDA analysis.

122 HR-RS-LPP03A 1.000E+00 6.333E-03 OPERATOR FAILS TO RESTORE SCS AT LO POS03A




124 SEQ-JL-P03A-04 1.000E+00 6.231E-03 JL POS 3A SEQUENCE 04 IDENTIFIER


125 %F078-A11C 1.480E-04 6.152E-03 FIRE IN ESSENTIAL CHILLER RM Fire frequency for compartment – no impact on SAMDA analysis.

126 %F050-A04A 1.480E-04 6.106E-03 FIRE IN SC PUMP & MINI FLOW HX RM


127 %F055-A02C 1.480E-04 6.082E-03 FIRE IN CCW PUMP RM Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP 181

Non-Proprietary

Table 5f (11 of 11)


Fussell-Vesely


128 %F100-AEEB 3.210E-04 6.070E-03 FIRE IN 480V CLASS 1E MCC 01B ROOM


129 %F055-AGAA 1.200E-04 5.982E-03 FIRE IN GENERAL ACCESS AREA-55' A


130 %F055-A02A 1.450E-04 5.972E-03 FIRE IN CCW PUMP RM Fire frequency for compartment – no impact on SAMDA analysis.

131 HR-SG-LPP03A 1.150E-03 5.956E-03 OPERATOR FAILS TO OPERATE SHR WITH AFW AT LP POS03A


132 SEQ-JL-P04B-03 1.000E+00 5.674E-03 JL POS 4B SEQUENCE 03 IDENTIFIER


133 %F120-A09C 2.460E-04 5.614E-03 FIRE IN ELECTRICAL PENETRATION ROOM (C)


134 HR-FB-LPP03A-01 3.479E-03 5.601E-03 OPERATOR FAILS TO OPERATE F&B AT LP POS03A 01


135 %F157-AMAX 1.090E-04 5.562E-03 FIRE IN MEETING ROOM Fire frequency for compartment – no impact on SAMDA analysis.

136 HR-FB-JLP04B-01 1.603E-03 5.521E-03 OPERATOR FAILS TO OPERATE F&B AT JL POS04B 01


137 %F078-A04D 5.470E-04 5.304E-03 FIRE IN MISC. ELECTRICAL EQUIP RM


138 COMBINATION_125 1.920E+03 5.254E-03 HEP DEPENDENCY FACTOR FOR HR-RS-LPP03A, HR-SG-LPP03A AND HR-FB-LPP03A-01


139 %F000-AC 7.780E-03 5.151E-03 FIRE IN ACCESS AREA Fire frequency for compartment – no impact on SAMDA analysis.

140 PFHBC1A-SW01A-E2 6.660E-03 5.073E-03 FAILS TO CLOSE OF FEEDER BRK SW01A-E2 TO EDG A



KEPCO & KHNP 182

Non-Proprietary

Table 6a (1 of 2) List of Additional Basic Events from APR1400 PRA Cutset Review (At-Power Internal Events)


Fussell-Vesely


1 MSEVXQ2-011/13 2.15E-05 4.47E-03 CCF OF 2/4 MSIV 011,013 Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.




5 SIMPM2A-PP02C 3.45E-03 4.11E-03 SAFETY INJECTION PUMP 2C UNAVAILABLE DUE TO T&M

Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

6 WMVVT-S-V1700 5.53E-04 3.99E-03 DEMI. WATER TRANSFER PUMPS DISCHARGE MANUAL VALVE TRANSFER CLOSE


7 CVDPS-S-PP03 1.79E-03 2.64E-03 AUXILIARY CHARGING PUMP (PP03) FAIL TO START


8 CVOPH-S-IRWST 1.00E-03 2.37E-03 OPERATOR FAILS TO REFILL THE IRWST VIA CVCS


9 CVOPH-S-BORATION 1.40E-02 2.33E-03 OPERATOR FAILS TO INITIATE EMERGENCY BORATION TO RCS


10 MSEVXQ4-011/12/13/14 1.11E-05 2.31E-03 CCF OF 4/4 MSIV 011,012,013,014 Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.


KEPCO & KHNP 183

Non-Proprietary

Table 6a (2 of 2)


Fussell-Vesely


11 CVMVO-S-509 9.65E-04 2.30E-03 IRWST RETURN LINE MOV 509 FAILS TO OPEN ON DEMAND


12 PELXKD2-LX09A11B 3.41E-06 2.11E-03 2/2 CCF OF LOOP CONTROLLER LX09A 12, LX11B 12


13 MSOPV-S-MSIS 1.00E-01 2.08E-03 OPERATOR FAILS TO RECOVER FOR MSIS


14 RCOPH-S-SDSE-FW-CD

1.00E+00 2.03E-03 FAILURE OF POSRVS EARLY PHASE OPEN WITH COMPLETE DEPENDENCY


15 MSEVXQ3-011/12/13 8.33E-06 1.73E-03 CCF OF 3/4 MSIV 011,012,013 Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.




19 C-RCD1-SCLT-RFIR 1.00E-06 1.67E-03 COMBINED OPERATOR ERROR FOR HR-RCSCD1-ISOL, SIOPH-S-LTC-SC and CVOPH-S-IRWST


20 SIMPWQ4-CSP1A/B/SCP1A/B

3.50E-06 1.31E-03 CCF OF CONTAINMENT SPRAY PUMPS AND SHUTDOWN COOLING PUMPS FAIL TO START



KEPCO & KHNP 184

Non-Proprietary

Table 6b (1 of 3) List of Additional Basic Events from APR1400 PRA Cutset Review (At-Power Internal Flooding Events)


Fussell-Vesely


1 #IE-100-10B-FP-X 5.71E-06 THE FLOOD INITIATING EVENT FOR A MAJOR BREAK OF FP PIPING IN ROOM 100-A10B


2 #IE-100-20A-FP-X 3.35E-04 THE FLOOD INITIATING EVENT FOR A MAJOR BREAK OF FP PIPING IN ROOM 100-A20A






5 #IE-137-29B-FP-M 2.66E-06 THE FLOOD INITIATING EVENT FOR A MODERATE BREAK OF FP PIPING IN ROOM 137-A29B


6 #IE-78-01D-FP-M 2.66E-06 THE FLOOD INITIATING EVENT FOR A MODERATE BREAK OF FP PIPING IN ROOM 078-A01D


7 #IE-78-01D-FP-X 1.71E-04 THE FLOOD INITIATING EVENT FOR A MAJOR BREAK OF FP PIPING IN ROOM 078-A01D


8 #IE-78-10C-FP-X 8.31E-05 THE FLOOD INITIATING EVENT FOR A MAJOR BREAK OF FP PIPING IN ROOM 078-A10C


9 #IE-78-15D-AF-X 1.98E-05 THE FLOOD INITIATING EVENT FOR A MAJOR BREAK OF AF-RELATED PIPING IN ROOM 078-A15D



KEPCO & KHNP 185

Non-Proprietary

Table 6b (2 of 3)


Fussell-Vesely


10 #IE-78-19A-FP-M 8.31E-05 THE FLOOD INITIATING EVENT FOR A MODERATE BREAK OF FP PIPING IN ROOM 078-A19A






13 #IE-78-19B-FP-M 1.34E-04 THE FLOOD INITIATING EVENT FOR A MODERATE BREAK OF FP PIPING IN ROOM 078-A19B






16 #IE-TB-MISC 1.16E-02 THE FLOOD INITIATING EVENT FOR A SIGNIFICANT FLOOD IN THE TURBINE ROOM


17 AFPVKQ4-TP01A/B/MP02A/B

4.12E-06 4/4 CCF OF AFW TDP01A/B, MDP02A/B DUE TO THE VOLUTE FAIL TO RUN


18 I-ATWS-RPMCF 2.98E-07 FAILURE TO SCRAM DUE TO MECHANICAL FAILURES


19 MTC-ATWS 1.60E-01 ADVERSE MODERATE TEMPERATURE COEFFICIENT

Quantification factor – no impact on SAMDA analysis.


KEPCO & KHNP 186

Non-Proprietary

Table 6b (3 of 3)


Fussell-Vesely


20 PFHBWQ2-SW2OUATCD

6.02E-05 2/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01C,1D FAIL TO OPEN


21 PFHBWQ3-SW2OUATAC

1.65E-05 3/4 CCF OF PCB BETWEEN UAT & 4.16KV SW01A,1C,1D FAIL TO OPEN



KEPCO & KHNP 187

Non-Proprietary

Table 6c (1 of 3) List of Additional Basic Events from APR1400 PRA Cutset Review (At-Power Fire Events)


Fussell-Vesely


1 FWOPH-S-ERY-CD 1.00E+00 4.10E-03 OPERATOR FAILS TO ALIGN STARTUP FEEDWATER PUMP PP07 (EARLY PHASE) WITH COMPLETE DEPENDENCY



3 SISPP-S-IRWST 1.22E-05 3.67E-03 FAILURE OF IRWST SUMP DUE TO PLUGGING


4 #F000-C01-156-1 7.29E-05 3.40E-03 CTMT TRANSIENT FIRES EL 156'-0" AREA 1


5 CVOPH-S-RCPSEAL 1.00E+00 3.34E-03 OPERATOR FAILS TO RECOVER RCP SEAL COOLING (AUX. CHG PUMP)


6 #F137-A02D_F157-AMCR

4.26E-07 3.25E-03 MULTI-COMPARTMENT FIRE FROM F137-A02D TO F157-AMCR








10 SISPP-S-CHEMICAL 1.00E-05 3.00E-03 DEBRIS INDUCED LOSS OF LONG TERM COOLING (DOWNSTREAM/CHEMICAL EFFECT)


11 MSOPH-S-SGADV 2.00E-03 2.72E-03 OPERATOR FAILS TO OPEN ADVS Procedural changes are not in the scope of this SAMDA analysis.

12 PELXY-C-LX04C-P 9.48E-05 2.68E-03 FAILURE OF PRIMARY LOOP CONTROLLER OF 745-PE-LX04C



KEPCO & KHNP 188

Non-Proprietary

Table 6c (2 of 3)


Fussell-Vesely


13 #FK-K01 5.58E-04 2.20E-03 ESW STRUCTURE "A" BUILDING FIRE


14 EFORT-A-FOR6-AFAS1A-GC1FR

1.95E-03 1.97E-03 FAILURE OF GC-1 CH. A FIBER OPTIC RECEIVER FOR LC


15 EFORT-A-FOR6-AFAS1A-GC1FT

1.95E-03 1.97E-03 FAILURE OF GC-1 CH. A FIBER OPTIC TRANSMITTER FOR LC


16 CCMVO-A-392 9.63E-04 1.91E-03 CCW MOV 392 FOR ECW CHILLER CH04A OUTLET FAIL TO OPEN


17 #F000-ADGC_F120-A01C

5.05E-06 1.90E-03 MULTI-COMPARTMENT FIRE FROM F000-ADGC TO F120-A01C


18 DCBSY-A-MC01A 5.64E-06 1.78E-03 BUS FAULTS ON 1E 125VDC BUS MC01A


19 #F137-A05D_F157-AMCR

1.81E-07 1.38E-03 MULTI-COMPARTMENT FIRE FROM F137-A05D TO F157-AMCR


20 VGAHM2B-AH02B 2.00E-03 1.25E-03 ESW PUMP B FAN 605-VG-AH02B UNAVAILABLE DUE TO T&M


21 #F137-ASTD_F157-AMCR

1.54E-07 1.17E-03 MULTI-COMPARTMENT FIRE FROM F137-ASTD TO F157-AMCR


22 EFORT-B-FOR6-AFAS2B-GC1FR

1.95E-03 9.63E-04 FAILURE OF GC-1 CH. B FIBER OPTIC RECEIVER FOR LC



KEPCO & KHNP 189

Non-Proprietary

Table 6c (3 of 3)


Fussell-Vesely


23 EFORT-B-FOR6-AFAS2B-GC1FT

1.95E-03 9.63E-04 FAILURE OF GC-1 CH. B FIBER OPTIC TRANSMITTER FOR LC


24 #F157-A17C_F157-AMCR

9.29E-08 7.09E-04 MULTI-COMPARTMENT FIRE FROM F157-A17C TO F157-AMCR



KEPCO & KHNP 190

Non-Proprietary

Table 6d (1 of 9) List of Additional Basic Events from APR1400 PRA Cutset Review (LPSD Internal Events)


Fussell-Vesely


1 %JL 5.00E-03 4.89E-03 Unrecoverable LOCA Initiating event – no impact on SAMDA analysis.

2 WOCHKQ4-CH01A/1B/2A/2B

5.01E-06 4.81E-03 RUNNING CCF OF ECW CHILLERS 1A/2A/1B/2B


3 WOCHKQ4-CH03A/3B/4A/4B

5.01E-06 4.81E-03 RUNNING CCF OF ECW CHILLERS 3A/4A/3B/4B


4 HR-FB-JLP03B-01-DE 5.43E-02 4.65E-03 HRA Dependence for SG & FB at JL POS03B






7 HR-MK-JLP03B 3.58E-02 4.50E-03 OPERATOR FAILS TO MAKE UP INVENTORY AT JL POS03B


8 HR-IL-JLP03B-02-DE 5.58E-02 4.40E-03 HRA Dependence for MK & IL at JL POS03B




10 HR-RS-S1P10 2.32E-04 3.84E-03 OPERATOR FAILS TO RESTORE SCS AT S1 POS10





KEPCO & KHNP 191

Non-Proprietary

Table 6d (2 of 9)


Fussell-Vesely


12 HR-MI-JLP11 1.25E-03 3.77E-03 Operator Fails To Isolate and Makeup

Unrecoverable LOCA (JL) PATH at POS11


13 VGAHKQ4-AH01A/1B/2A/2B

3.65E-06 3.51E-03 4/4 RUNNING CCF OF ESW PUMP ROOM FAN AH01A/B, 02A/B


14 VGAHKQ4-AH04A/4B/5A/5B

3.65E-06 3.51E-03 4/4 RUNNING CCF OF ESW PUMP ROOM FAN AH04A, 04B, 05A, 05B


15 HR-FB-LPP12A-DE 5.12E-02 3.22E-03 HRA Dependence for RS & FB at LP POS12A


16 HR-RS-LPP12A 3.37E-03 3.22E-03 OPERATOR FAILS TO RESTORE SCS AT LO POS12A


17 SIMPWQ4-CSP1A/B/SCP1A/B

3.49E-06 3.17E-03 4/4 CCF OF CSP PP01A, PP01B AND SCP PP01A, PP01B TO START






20 HR-FB-KVP05-DE 5.12E-02 2.75E-03 HRA Dependence for RS & FB at KV POS05


21 HR-RS-KVP05 3.37E-03 2.75E-03 OPERATOR FAILS TO RESTORE SCS AT KV POS05


22 HR-FB-S1P12A-DE 5.12E-02 2.74E-03 HRA Dependence for RS & FB at S1 POS12A


23 HR-RS-S1P12A 3.37E-03 2.74E-03 OPERATOR FAILS TO RESTORE SCS AT S1 POS12A



KEPCO & KHNP 192

Non-Proprietary

Table 6d (3 of 9)


Fussell-Vesely


24 %CC 6.75E-03 2.57E-03 Loss of Component Cooling Water Initiating event – no impact on SAMDA analysis.





27 HR-FB-LPP04B-DE 5.12E-02 1.84E-03 HRA Dependence for RS & FB at LP POS04B


28 HR-RS-LPP04B 3.97E-04 1.84E-03 OPERATOR FAILS TO RESTORE SCS AT LO POS04B


29 CCMVO-B-352 9.63E-04 1.77E-03 SC Hx. HE01B INLET MOV 352 FAILS

TO OPEN Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

30 SIMPS1B-SCPP01B 9.47E-04 1.74E-03 SC PUMP 2 PP01B FAILS TO START Given the low importance of this event, very little benefit would be

obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.





33 SIMVWQ4-616/26/36/46 1.07E-05 1.70E-03 CCF OF 4/4 DVI LINEMOV

616,626,636,646 Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

34 HR-FB-S2P03B-01-DE 5.43E-02 1.68E-03 HRA Dependence for SG & FB at S2 POS03B




36 HR-SG-S2P03B-DE 5.10E-02 1.67E-03 HRA Dependence for RS & SG at S2 POS03B



KEPCO & KHNP 193

Non-Proprietary

Table 6d (4 of 9)


Fussell-Vesely


37 HR-FB-JLP04B-02-DE 5.99E-02 1.64E-03 HRA Dependence for MI & FB at JL POS04B


38 HR-MI-JLP04B 1.25E-03 1.64E-03 Operator Fails To Isolate and Makeup

Unrecoverable LOCA (JL) PATH at POS04B


39 HR-RS-LPP03A 2.70E-02 1.60E-03 OPERATOR FAILS TO RESTORE SCS AT LO POS03A


40 HR-SG-LPP03A-DE 5.10E-02 1.60E-03 HRA Dependence for RS & SG at LP POS03A


41 CCMVO-A-351 9.63E-04 1.58E-03 SC Hx. HE01A INLET MOV 351 FAILS

TO OPEN Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

42 HR-FB-S1P04B-DE 5.12E-02 1.56E-03 HRA Dependence for RS & FB at S1 POS04B




44 SIMPS1A-SCPP01A 9.47E-04 1.55E-03 SC PUMP PP01A FAILS TO START Given the low importance of this event, very little benefit would be

obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

45 HR-FB-LPP03A-01-DE 5.43E-02 1.53E-03 HRA Dependence for SG & FB at LP POS03A


46 MSOPH-S-ASC-SLOCA 1.30E-01 1.51E-03 OPERATOR FAILS TO PERFORM

AGGRE. SEC. COOLING FOR SLOCA Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

47 HR-FB-ESP05-DE 5.12E-02 1.46E-03 HRA Dependence for RS & FB at ES POS05


48 HR-RS-ESP05 3.37E-03 1.46E-03 OPERATOR FAILS TO RESTORE SCS AT ES POS05



KEPCO & KHNP 194

Non-Proprietary

Table 6d (5 of 9)


Fussell-Vesely


49 HR-FB-JLP10-01_DE 5.12E-02 1.43E-03 HRA Dependence for RS & FB at JL POS10


50 HR-RS-JLP10 3.01E-04 1.43E-03 OPERATOR FAILS TO RESTORE SCS AT JL POS10


51 HR-RS-ESP03B 2.70E-02 1.43E-03 OPERATOR FAILS TO RESTORE SCS AT ES POS03B


52 HR-FB-ESP03B-01-DE 5.43E-02 1.42E-03 HRA Dependence for SG & FB at ES POS03B




54 HR-RS-JLP06 4.66E-04 1.42E-03 OPERATOR FAILS TO RESTORE SCS AT JL POS06


55 HR-SG-ESP03B-DE 5.10E-02 1.41E-03 HRA Dependence for RS & SG at ES POS03B




57 HR-SG-S1P03A-DE 5.10E-02 1.36E-03 HRA Dependence for RS & SG at S1 POS03A


58 HR-FB-S1P03A-01-DE 5.43E-02 1.30E-03 HRA Dependence for SG & FB at S1 POS03A


59 HR-FB-SLP05-01 1.27E-03 1.24E-03 OPERATOR FAILS TO OPERATE F&B AT SL POS05 01







KEPCO & KHNP 195

Non-Proprietary

Table 6d (6 of 9)


Fussell-Vesely


62 HR-FB-TCP03B-01 4.55E-03 1.08E-03 OPERATOR FAILS TO OPERATE F&B AT TC POS03B 01


63 HR-FB-TSP03B-01 4.55E-03 1.08E-03 OPERATOR FAILS TO OPERATE F&B AT TS POS03B 01






66 PELXY-B-LX03B-P 9.48E-05 9.75E-04 FAILURE OF PRIMARY LOOP

CONTROLLERS 745-PE-LX03C Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

67 HR-FB-TCP13-01 4.55E-03 9.62E-04 OPERATOR FAILS TO OPERATE F&B AT TC POS13 01


68 HR-FB-TSP13-01 4.55E-03 9.62E-04 OPERATOR FAILS TO OPERATE F&B AT TS POS13 01






71 HR-FB-SLP11-01 1.27E-03 9.56E-04 OPERATOR FAILS TO OPERATE F&B AT SL POS11 01


72 PELXY-B-LX02B-P 9.48E-05 9.19E-04 FAILURE OF PRIMARY LOOP

CONTROLLER OF 745-LX02B Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

73 VKHVKQ4-HV13A/13B/14A/14B

9.21E-07 8.82E-04 4/4 CCF OF RUN FOR CCW PUMP ROOM CUBICLE COOLER HV13A, 13B, 14A, 14B


74 HR-FB-KVP10 1.27E-03 7.48E-04 OPERATOR FAILS TO OPERATE F&B AT KV POS10



KEPCO & KHNP 196

Non-Proprietary

Table 6d (7 of 9)


Fussell-Vesely


75 HR-FB-TCP10 1.27E-03 6.88E-04 OPERATOR FAILS TO OPERATE F&B AT TC POS10


76 HR-FB-TSP10 1.27E-03 6.88E-04 OPERATOR FAILS TO OPERATE F&B AT TS POS10


77 HR-FB-KVP12A-DE 5.12E-02 6.84E-04 HRA Dependence for RS & FB at KV POS12A


78 HR-RS-KVP12A 3.37E-03 6.84E-04 OPERATOR FAILS TO RESTORE SCS AT KV POS12A


79 HR-MK-JLP03A 3.58E-02 6.65E-04 OPERATOR FAILS TO MAKE UP INVENTORY AT JL POS03A


80 HR-IL-JLP03A-02-DE 5.58E-02 6.50E-04 HRA Dependence for MK & IL at JL POS03A






83 SIMPKQ4-CSP1A/B/SCP1A/B

6.76E-07 6.14E-04 4/4 CCF OF CSP PP01A, PP01B AND SCP PP01A , PP01B TO RUN






86 HR-FB-JLP03A-01-DE 5.43E-02 5.51E-04 HRA Dependence for SG & FB at JL POS03A


87 SXMPKQ4-PP01A/B/2A/B

5.66E-07 5.41E-04 4/4 CCF OF ESW PUMPS PP01A/2A, PP01B/2B TO RUN



KEPCO & KHNP 197

Non-Proprietary

Table 6d (8 of 9)


Fussell-Vesely


88 HR-FB-CCP05-DE 5.12E-02 5.29E-04 HRA Dependence for RS & FB at CC POS05


89 HR-RS-CCP05 3.37E-03 5.29E-04 OPERATOR FAILS TO RESTORE SCS AT CC POS05


90 HR-FB-JLP04B-01-DE 5.12E-02 5.24E-04 HRA Dependence for RS & FB at JL POS04B


91 HR-RS-JLP04B 4.66E-04 5.24E-04 OPERATOR FAILS TO RESTORE SCS AT JL POS04B


92 HR-RS-CCP03B 2.70E-02 5.17E-04 OPERATOR FAILS TO RESTORE SCS AT CC POS03B


93 HR-FB-CCP03B-01-DE 5.43E-02 5.14E-04 HRA Dependence for SG & FB at CC POS03B


94 HR-SG-CCP03B-DE 5.10E-02 5.12E-04 HRA Dependence for RS & SG at CC POS03B


95 HR-FB-ESP10-DE 5.12E-02 5.11E-04 HRA Dependence for RS & FB at ES POS10


96 HR-RS-ESP10 2.32E-04 5.11E-04 OPERATOR FAILS TO RESTORE SCS AT ES POS10


97 VGFLKD2-FT01A/01B 5.17E-07 4.94E-04 2/2 CCF OF ESW PUMP ROOM

FILTER FT01A, 01B Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

98 HR-FB-TCP06 1.27E-03 4.41E-04 OPERATOR FAILS TO OPERATE F&B AT TC POS06


99 HR-FB-TSP06 1.27E-03 4.41E-04 OPERATOR FAILS TO OPERATE F&B AT TS POS06



KEPCO & KHNP 198

Non-Proprietary

Table 6d (9 of 9)


Fussell-Vesely


100 HR-FB-S2P12A-DE 5.12E-02 4.30E-04 HRA Dependence for RS & FB at S2 POS12A





KEPCO & KHNP 199

Non-Proprietary

Table 6e (1 of 4) List of Additional Basic Events from APR1400 PRA Cutset Review (LPSD Internal Flooding Events)


Fussell-Vesely


1 PFHBO2A-SW01C-A2 6.66E-03 4.69E-03 PCB SW01C-A2 OF 4.16KV SWGR SW01C FAILS TO OPEN




3 SEQ-S2-P13-04 1.00E+00 4.08E-03 S2 POS 13 SEQUENCE 04 IDENTIFIER


4 SIMVWQ4-616/26/36/46 1.07E-05 4.05E-03 CCF OF 4/4 DVI LINEMOV 616,626,636,646


5 SIMVT2A-308 3.71E-05 3.86E-03 MOV 308 IN IRWST SUC. PATH A FAILS TO REMAIN OPEN


6 SIMVWQ2-636/46 9.82E-06 3.65E-03 CCF OF 2/4 DVI LINEMOV 636,646 Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

7 PFBSY2A-SW01C 3.34E-05 3.47E-03 BUS FAULT ON 4.16KV SWGR SW01C


8 PGBSY2A-LC01C 3.34E-05 3.47E-03 BUS FAULT ON 480V LC LC01C Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

9 PHBSY2A-MC04C 3.34E-05 3.47E-03 BUS FAULT ON 480V MCC MC04C Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.




KEPCO & KHNP 200

Non-Proprietary

Table 6e (2 of 4)


Fussell-Vesely


11 HR-FB-S2P03B-01 4.55E-03 3.20E-03 OPERATOR FAILS TO OPERATE F&B AT S2 POS03B 01


12 PELXY-B-LX02B-P 9.48E-05 3.06E-03 FAILURE OF PRIMARY LOOP CONTROLLER OF 745-LX02B


13 VKHVS2A-HV11A 3.86E-03 3.00E-03 FAILS TO START SI PUMP ROOM CUBICLE COOLER HV11A


14 VDHVS-C-HV12C 3.86E-03 2.71E-03 FAILS TO START EDG ROOM CUBICLE COOLER HV12C


15 VDHVS-C-HV13C 3.86E-03 2.71E-03 FAILS TO START EDG ROOM CUBICLE COOLER HV13C


16 DGDGL-C-DGC 3.78E-03 2.66E-03 DG 01C FAILS TO LOAD AND RUN DURING 1ST 1HR OF OPERATION


17 PELXY-A-LX03A-P 9.48E-05 2.37E-03 FAILURE OF PRIMARY LOOP CONTROLLER OF 745-PE-LX03A


18 PGXMY2A-TR01C 2.27E-05 2.36E-03 480V LC TRANSFORMER LC-TR01C FAULT


19 AFMPR2A-MDP02A 2.50E-04 2.34E-03 FAILS TO RUN AFW MDP PP02A Given the low importance of this event, very little benefit would be obtained from efforts to reduce the importance further. Therefore, no SAMA items are added.

20 VKDMT-A-Y0001A 4.01E-03 2.30E-03 AU01A OPPOSED BD Y0001A TRANSFERS CLOSED



KEPCO & KHNP 201

Non-Proprietary

Table 6e (3 of 4)


Fussell-Vesely


21 HR-FB-S2P13-01 4.55E-03 2.24E-03 OPERATOR FAILS TO OPERATE F&B AT S2 POS13 01


22 DGDGS-C-DGC 2.89E-03 2.03E-03 FAILS TO START OF EMERGENCY DIESEL GENERATOR DG01C


23 FPOPH-4-ISO-FL 9.40E-03 2.00E-03 Operator fails to isolate FP break with more than 80 minutes available


24 SIMVWQ3-616/36/46 4.84E-06 1.81E-03 CCF OF 3/4 DVI LINE MOV 646,636,616


25 VKHVS2A-HV16A 3.86E-03 1.80E-03 FAILS TO START SC PUMP 02A ROOM CUBICLE COOLER HV16A


26 SIMVWQ3-626/36/46 4.84E-06 1.80E-03 CCF OF 3/4 DVI LINE MOV 626,636,646


27 IE-055-50B-FP-M 1.71E-04 1.70E-03 Moderate break of FP piping in room 055-A50B


28 VOHVR2A-HV33A 1.35E-04 1.26E-03 FAILS TO RUN OF MAFP ROOM A CUBICLE COOLER HV33A


29 DGSQA-C-LOADSQ 1.76E-03 1.24E-03 LOAD SEQUENCER C FAILS TO OPERATE


30 SICVO2A-V133 1.07E-05 1.11E-03 SI PUMP DVI2A INJECTION LINE CV 133 FAILS TO OPEN



KEPCO & KHNP 202

Non-Proprietary

Table 6e (4 of 4)


Fussell-Vesely


31 SICVO2A-V237 1.07E-05 1.11E-03 SI LINE DVI 2A CHECK VALVE SI-237 FAILS TO OPEN


32 SICVO2A-V434 1.07E-05 1.11E-03 SI PUMP 3 DISCHARGE LINE CV 434 FAILS TO OPEN


33 SICVO2A-V542 1.07E-05 1.11E-03 SI PUMP DVI2A INJECTION LINE CV 542 FAILS TO OPEN




36 PELXY-A-LX01A-P 9.48E-05 9.82E-04 FAILURE OF PRIMARY LOOP CONTROLLER OF 745-PE-LX01A


37 AFVVT2A-V1001A 9.22E-05 8.62E-04 AFW MDP02A SUCT. MANUAL VALVE V1001A TRANSFER CLOSED


38 AFVVT2A-V1005A 9.22E-05 8.62E-04 AFW MDP01A DISCH. MANUAL VALVE V1005A TRANSFER CLOSED


39 AFVVT2A-V1011A 9.22E-05 8.62E-04 AFW MDP02A MINI FLOW LINE MANUAL VALVE V1011A TRANSFER CLOSED


40 AFVVT2A-V1603 9.22E-05 8.62E-04 AFW MDP02A MINI FLOW LINE MANUAL VALVE V1603 TRANSFER CLOSED



KEPCO & KHNP 203

Non-Proprietary

Table 6f (1 of 2) List of Additional Basic Events from APR1400 PRA Cutset Review (LPSD Fire Events)


Fussell-Vesely


1 %F137-A09D 1.75E-04 4.68E-03 FIRE IN GENERAL ACCESS AREA Fire frequency for compartment – no impact on SAMDA analysis.

2 SEQ-KV-P10-03 1.00E+00 4.41E-03 KV POS 10 SEQUENCE 03 IDENTIFIER




4 %FK-K03 8.82E-05 4.33E-03 FIRE IN ESW ULTIMATE HEAT SINK COOLING TOWER 1A AREA


5 %F078-A52D 3.56E-04 4.22E-03 FIRE IN 480V N1E MCC RM Fire frequency for compartment – no impact on SAMDA analysis.

6 %F100-A13A 7.92E-05 4.01E-03 FIRE IN MECHANICAL PENETRATION RM


7 AS-CCDP-LT 1.00E-01 3.98E-03 LONG TERM ALTERNATE SHUTDOWN CCDP EST. (> 1.5 HRS FOR RS OR > 3 HRS FOR SG)


8 %F100-A14A 7.91E-05 3.81E-03 FIRE IN PERSONNEL AIR LOCK ENTRANCE


9 %F078-A05D 3.93E-04 3.71E-03 FIRE IN CHANNEL-D DC & IP EQUIP RM


10 %FD-D01B 3.91E-04 3.68E-03 FIRE IN CCW HEAT EXCHANGER "B" BUILDING


11 %F100-A10A 7.31E-05 3.64E-03 FIRE IN GENERAL ACCESS AREA Fire frequency for compartment – no impact on SAMDA analysis.

12 %F120-A15B 1.85E-04 3.61E-03 FIRE IN 480V CLASS 1E MCC 03B RM Fire frequency for compartment – no impact on SAMDA analysis.

13 %F078-A56B 3.69E-04 3.56E-03 FIRE IN CHANNEL-B DC & IP EQUIP. RM


14 %F137-A20A 7.38E-05 3.56E-03 FIRE IN GENERAL ACCESS AREA Fire frequency for compartment – no impact on SAMDA analysis.

15 %F157-A01D 1.82E-04 3.43E-03 FIRE IN I & C EQUIP. RM Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP 204

Non-Proprietary

Table 6f (2 of 2)


Fussell-Vesely


16 BF_F000-AC_F137-A20A 8.60E-03 3.23E-03

BARRIER FAILURE BETWEEN F000-AC AND F137-A20A


17 BF_F137-A09D_F157-A17C 8.60E-03 3.06E-03

BARRIER FAILURE BETWEEN F137-A09D AND F157-A17C


18 %F078-A03D 3.13E-04 2.98E-03 FIRE IN CLASS 1E LOADCENTER 01D RM


19 %F055-A14C 5.66E-05 2.80E-03 FIRE IN PIPE CHASE & VALVE RM Fire frequency for compartment – no impact on SAMDA analysis.

20 %F157-ATOC 5.54E-05 2.76E-03 FIRE IN TSC EQUIP. REPAIR & MAINT ROOM


21 %F157-A16C 5.52E-05 2.73E-03 FIRE IN GENERAL ACCESS AREA Fire frequency for compartment – no impact on SAMDA analysis.

22 SEQ-AS-P04B-02 1.00E+00 2.50E-03 AS POS 4B SEQUENCE 02 IDENTIFIER


23 %F137-A11D 2.33E-04 2.20E-03 FIRE IN ELECTRICAL PENETRATION RM (D)


24 SEQ-AS-P10-02 1.00E+00 2.10E-03 AS POS 10 SEQUENCE 02 IDENTIFIER


25 SEQ-AS-P05-02 1.00E+00 2.06E-03 AS POS 5 SEQUENCE 02 IDENTIFIER Sequence identifier – no impact on SAMDA analysis.

26 %F157-A19D 2.03E-04 2.05E-03 FIRE IN I & C EQUIP. RM Fire frequency for compartment – no impact on SAMDA analysis.

27 %F137-AEPB 1.96E-04 1.90E-03 FIRE IN ELECTRICAL PENETRATION ROOM (B)


28 %F137-A15B 2.01E-04 1.90E-03 FIRE IN 480V CLASS 1E MCC 04B RM Fire frequency for compartment – no impact on SAMDA analysis.


KEPCO & KHNP

Non-Proprietary

Appendix A

Quantification Results of Level 3 PRA Using WinMACCS Code


KEPCO & KHNP i

Non-Proprietary

TABLE OF CONTENTS

1. OBJECTIVE......................................................................................................... A1

2. ASSUMPTIONS, DESIGN INPUTS, AND KEY PARAMETER UNCERTAINTIES . A2

2.1. Assumptions ................................................................................................................................. A2

2.2. Design Inputs ................................................................................................................................ A2

2.3. Key Parameter Uncertainties ........................................................................................................ A2

3. METHOD OF ANALYSIS ..................................................................................... A3

4. APR1400 LEVEL 2 DATA ................................................................................... A4

5. WINMACCS MODEL INPUT INFORMATION ....................................................... A8

5.1. ATMOS User Input File: “AATMOS.INP” ...................................................................................... A8

5.2. EARLY User Input File: "AEARLY.INP" ...................................................................................... A19

5.3. CHRONC User Input File: "ACHRONC.INP".............................................................................. A19

5.4. Meteorological Data File: “metsurMxHt_60min.inp" ................................................................... A20

5.5. SITE Data File: “ASITE.INP” ...................................................................................................... A21

Population Distribution ................................................................................................................ A21 5.5.1.

Land Fractions ............................................................................................................................ A22 5.5.2.

Region Index ............................................................................................................................... A22 5.5.3.

Watershed Index ......................................................................................................................... A22 5.5.4.

Crop Season and Share ............................................................................................................. A22 5.5.5.

Watershed Definition .................................................................................................................. A22 5.5.6.

Regional Economic Data ............................................................................................................ A23 5.5.7.

6. COMPUTER CODES AND COMPUTER USED .................................................... A33

7. DETAILED CALCULATION ................................................................................ A34

8. COMPUTER INPUT AND OUTPUT ................................................................... A35

9. SUMMARY OF RESULTS .................................................................................. A36

10. CONCLUSION ................................................................................................... A39

11. REFERENCES ................................................................................................... A40

ATTACHMENT I. ROSETTE AND POPULATION DISTRIBUTION .............................. A42

ATTACHMENT II. WINMACCS INPUT FILE LISTING FOR BASE CASE .................. A46


KEPCO & KHNP ii

Non-Proprietary

LIST OF TABLES

Table 4-1 Release Frequency for each STC ................................................................................. A5

Table 4-2 Release Fission Product Groups ................................................................................... A6

Table 4-3 Release Fission Product Groups in MACCS2 and MAAP ............................................. A7

Table 5.5.1-1 Virginia / North Carolina County Population Growth, 2000 to 2010 ............................ A24

Table 5.5.1-2 Virginia / North Carolina County Population Growth, 2010 to 2030 ............................ A26

Table 5.5.1-3 SECPOP2000 Year 2000 Population per Segment .................................................... A28

Table 5.5.1-4 Projected 2000 to 2030 Population Multipliers per Segment ...................................... A29

Table 5.5.1-5 Projected 2030 Populations Per Segment ................................................................... A30

Table 5.5.7-1 County Database Updates for Counties (and Cities) Near Surry ................................ A31

Table 9-1 Summary of Results for Population Dose .................................................................... A37

Table 9-2 Summary of Results for Offsite Economic Costs ......................................................... A38


KEPCO & KHNP iii

Non-Proprietary

Page Intentionally blank


KEPCO & KHNP A1

Non-Proprietary

1. OBJECTIVE

This appendix documents the preparation and application of APR1400 nuclear plant site-specific input files for the severe accident consequence code Melcor Accident Consequence Code System (WinMACCS) code (References 1–4). WinMACCS is a Windows-based interface and framework that simulates the impact of severe accidents at nuclear power plants on the surrounding environment and is used for the quantification of Level 3 probabilistic risk assessments (PRAs). The principal phenomena considered in WinMACCS are atmospheric transport, mitigative actions based on dose projections, dose accumulation by a number of pathways including food and water ingestion, early and latent health effects, and economic costs.

To demonstrate the application of the Design Certification Level 3 analysis, a representative Level 2 PRA result for the APR1400 is used here in a matrix form. This allows the use of plant damage state frequencies to develop absolute (rather than conditional) offsite consequence analyses. The Level 2 source term data are taken from the APR1400 MAAP analysis document and are not developed in this analysis.

The Level 3 (WinMACCS) model was prepared using projected year 2030 demographic data from the 2010 U.S. Census and 2007 Agricultural Census for the area around the Surry Power Station (SPS) site (see Attachment I) and APR1400 source term results from the Level 2 MAAP analysis. The population distribution is given for an 80.47 km (50 mile) radius around the Surry plant site.

Five cases were prepared and executed, and the results, including the offsite population dose and economic damage, are shown in the Summary of Results section. This represents a limited-scope Level 3 PRA. The results are based on the internal events at-power PRA only. No insights are derived and no analysis of the contributors to risk is performed.


KEPCO & KHNP A2

Non-Proprietary

2. ASSUMPTIONS, DESIGN INPUTS, AND KEY PARAMETER UNCERTAINTIES

2.1. Assumptions

1) The Surry 80.47 km (50 mile) population distribution for year 2030 is appropriate for this evaluation.

2) The APR1400 source term data are valid for this application.

3) The 1988 Surry meteorological data for the base case are assumed to be a good representation for any given year (metsurMxHt_60min.INP).

4) The adjustment of economic data for farmland and non-farmland by using time-weighted Consumer Price Index (CPI) data (2011) is appropriate.

2.2. Design Inputs

This analysis will use Surry 80.47 km (50 mile) population data for year 2030, which were obtained from the 2000 and 2010 Census data and used to replace the Surry Updated Final Safety Analysis Report (UFSAR) data for the region surrounding the site.

The source term category release fractions were taken from the APR1400 Level 2 PRA (Reference 7).

Meteorological data were obtained from the WinMACCS NRC Sample Problem data folder (metsurMxHt_60min.INP) included with the WinMACCS software. Additionally, the dose conversion file (DOSDATA.INP) and COMIDA2 model file (SAMP_A.BIN) were obtained from the MACCS2 Sample Problem folder.

Economic data were properly adjusted by using the current Consumer Price Index for 2011.

2.3. Key Parameter Uncertainties

No parameter uncertainties were included in this calculation since only best-estimate results are sought.


KEPCO & KHNP A3

Non-Proprietary

3. METHOD OF ANALYSIS

The objective of this calculation is to calculate the total dose to a population within a 50-mile radius of the reference Surry Power Station and the total dollar cost incurred for the decontamination of farmland and non-farmland, including the cost of relocating a population that lives within this boundary.

The following steps are used to perform this calculation.

1) Gather data that are specific to the reference Surry Power Station site and available APR1400 reactor design, including meteorological data, source term data, population data, economic data, watershed data, and spatial coordinate data. Additional inputs are also required but are discussed in Section 5.

2) The data are then entered into the five input files that are required and used by the WinMACCS code. These five input files for APR1400 are identified as AATMOS, AEARLY, ACHRONC, ASITE, and AMET input files.

The Level 3 severe accident consequence analysis was carried out with the WinMACCS code. WinMACCS simulates the impact of severe accidents at nuclear power plants on the surrounding environment. The principal phenomena considered in WinMACCS are atmospheric transport, mitigative actions based on dose projections, dose accumulation by a number of pathways including food and water ingestion, early and latent health effects, and economic costs. This analysis was performed with the WinMACCS Version 3.7.0.

The sources and preparation of the input data are summarized in the following sections. The WinMACCS code is described in the technical reports provided with the code package.


KEPCO & KHNP A4

Non-Proprietary

4. APR1400 LEVEL 2 DATA

The APR1400 Level 2 data are used for the Level 3 PRA. These data include the source term release fractions, plume release start and duration times, and source term plume release heights from the MAAP Level 2 analysis. Table 4-1 shows the release frequency for each source term category. Table 4-2 shows the group of isotopes in each radionuclide release class for the WinMACCS code. Table 4-3 shows the correspondence of WinMACCS code and MAAP4 code radionuclide group.


KEPCO & KHNP A5

Non-Proprietary

Table 4-1 Release Frequency for Each Source Term Category (STC)

Category STC Characteristics Internal Event (/ry)

Flooding Event

(ry)

Fire Event

(ry)

Overall Frequency

(/ry)

STC 01 SGTR w/o scrubbing 5.33E-08 6.21E-09 8.31E-08 1.43E-07

STC 02 SGTR with scrubbing 2.41E-08 0.00E+00 0.00E+00 2.41E-08

STC 03 ISLOCA w/o scrubbing 5.31E-11 0.00E+00 0.00E+00 5.31E-11

STC 04 ISLOCA with scrubbing 6.49E-11 0.00E+00 0.00E+00 6.49E-11

STC 05 Not isolation with CS 2.46E-09 7.40E-10 2.38E-08 2.70E-08

STC 06 Not isolation w/o CS 1.23E-09 6.08E-09 2.60E-08 3.33E-08

STC 07 CFBRB with a leak failure size 1.14E-08 9.38E-10 4.36E-09 1.67E-08

STC 08 CFBRB with a rupture failure size 1.30E-08 1.03E-09 6.16E-09 2.02E-08

STC 09 Intact containment w/o RPV breach 3.67E-07 4.24E-08 2.83E-07 6.92E-07

STC 10 Intact containment with RPV breach 7.64E-07 3.28E-07 9.62E-07 2.05E-06

STC 11 Basemat melt-through 1.33E-08 5.33E-09 5.56E-07 5.75E-07

STC 12 Early containment failure with a leak failure size 0.00E+00 0.00E+00 0.00E+00 0.00E+00

STC 13 Early containment failure with a rupture failure size 1.80E-09 7.82E-10 3.71E-09 6.29E-09

STC 14 Late containment failure with a leak failure size 4.28E-11 1.60E-11 2.39E-09 2.45E-09

STC 15 Late containment failure with a leak failure size 0.00E+00 0.00E+00 0.00E+00 0.00E+00



STC 18 Late containment failure with a rupture failure size 4.19E-10 1.56E-10 2.34E-08 2.40E-08




Total 1.31E-06 4.24E-07 2.06E-06 3.80E-06


KEPCO & KHNP A6

Non-Proprietary

Table 4-2 Release Fission Product Groups

Group Release Class (Isotope Included)

Xe/Kr Noble Gas (Xe, Kr)

I Iodine (I)

Cs Cesium (Cs + Rb)

Te/Sb Tellurium (Te + Sb)

Sr Strontium (Sr)

Ru Ruthenium (Co + Mo + Tc + Ru + Rh)

La Lanthanum (Y + Zr + Nb + La + Pr + Nd + Am + Cm)

Ce Cerium (Ce + Np + Pu)

Ba Barium (Ba)


KEPCO & KHNP A7

Non-Proprietary

Table 4-3 Release Fission Product Groups in MACCS2 and MAAP

MACCS2 Code MAAP Code

Xe/Kr 1 (Noble Gas)

I 2 (CsI)

Cs 2 (CsI) & 6(CsOH)

Te/Sb 3(TeO2) & 11(Te2) & 10(Sb)

Sr 4 (SrO)

Ru 5 (MoO2) (Mo is in Ru MACCS Category)

La 8 (La2O3)

Ce 9(CeO2) & 12(UO2)

Ba 7(BaO)

* Note: For the elemental release calculation of MACCS2, each elemental release was gathered from the release of a MAAP fission product group. For example, for the MACCS2 Cs group, the elemental release of Cs and Ru was gathered from the MAAP fission product group of CsI and CsOH. Fission product groups of the MAAP code are as follows: • FREL(1): Mass fraction of inert aerosol (noble gas) released to environment • FREL(2): Mass fraction of CsI released to environment • FREL(3): Mass fraction of TeO2 released to environment • FREL(4): Mass fraction of SrO released to environment • FREL(5): Mass fraction of MoO2 released to environment • FREL(6): Mass fraction of CsOH released to environment • FREL(7): Mass fraction of BaO released to environment • FREL(8): Mass fraction of La2O3, etc. released to environment • FREL(9): Mass fraction of CeO2 released to environment • FREL(10): Mass fraction of Sb released to environment • FREL(11): Mass fraction of Te2 released to environment • FREL(12): Mass fraction of UO2, etc. released to environment


KEPCO & KHNP A8

Non-Proprietary

5. WinMACCS MODEL INPUT INFORMATION

This section describes the preparation of the data in the various WinMACCS input files. A large number of input data values are required. Many of these were prepared and recommended as part of the code preparation. These values are used in this analysis except where plant-specific values are required. Values that required extensive preparation are noted in the following text or identified with comments in the input file body.

WinMACCS input files covered in this document are described below. File names of plant-specific files are shown in quotation marks.

Input file listings, except for the meteorological file, are included.

5.1. ATMOS User Input File: “AATMOS.INP”

The AATMOS.INP file provides the main input for the ATMOS calculation phase of WinMACCS.

ATMOS calculates the dispersion and deposition of material released "source terms" to the atmosphere as a function of downwind distance. It utilizes a Gaussian plume model with Pasquill-Gifford dispersion parameters. The phenomena that ATMOS treats are (1) building wake effects, (2) buoyant plume rise, (3) plume dispersion during transport, (4) wet and dry deposition, and (5) radioactive decay and ingrowth. At the midpoint of each spatial interval along the transport path, air and ground concentrations for all the radionuclides are calculated as well as miscellaneous information about plume size, height, and transport timing. These data are stored in common blocks, which are used later by the EARLY and CHRONC modules of WinMACCS.


KEPCO & KHNP A9

Non-Proprietary

Source Terms The source term release fractions (RELFRC) for the WinMACCS element groups are shown below for 21 different source term categories (STCs). The release fractions are the MAAP values given in Reference 7. Only 19 of the 21 STCs from the MAAP results are used here, as two STCs (12 and 15) produced no sequences. Note that all values were rounded to two significant figures.

STC Plume No.

Start Time

End Time

Release Fraction (MACCS2 Group) Plume Position Kr/Xe I Cs Te/Sb Sr Ru La Ce Ba

STC-01 Plume1 35.0 37.6 8.2E-01 1.1E-01 6.1E-02 6.9E-02 1.4E-03 3.6E-02 8.3E-05 7.3E-04 8.1E-03 Leading Plume2 37.6 42.7 2.4E-02 4.4E-02 9.9E-03 1.6E-02 2.4E-03 1.6E-03 6.5E-05 1.9E-04 8.1E-03 Midpoint Plume3 42.7 49.5 6.1E-02 1.1E-02 3.0E-03 2.4E-03 5.3E-03 1.7E-05 4.2E-04 4.4E-04 5.4E-03 Midpoint Plume4 49.5 132.1 2.8E-02 2.9E-01 1.2E-01 1.0E-01 4.1E-03 4.0E-03 6.3E-03 6.3E-03 5.1E-03 Midpoint

STC-02 Plume1 45.5 45.7 1.9E-03 2.0E-03 2.9E-11 9.0E-10 1.6E-10 1.2E-10 1.6E-12 2.1E-11 7.6E-12 Leading Plume2 45.7 67.8 3.3E-03 3.5E-03 2.2E-06 9.2E-06 1.2E-05 1.2E-06 4.6E-08 2.1E-07 6.9E-08 Midpoint Plume3 67.8 94.0 6.2E-04 6.6E-04 1.7E-07 1.3E-08 3.6E-07 1.5E-09 6.1E-11 1.7E-09 9.1E-11 Midpoint

STC-03 Plume1 10.2 11.0 5.6E-01 2.2E-01 2.2E-01 3.3E-02 1.1E-02 4.2E-03 7.0E-05 7.0E-04 1.3E-02 Leading Plume2 11.0 11.9 1.7E-01 2.5E-02 2.5E-02 5.4E-02 2.5E-03 3.4E-03 3.3E-05 3.1E-04 3.6E-03 Midpoint Plume3 11.9 12.1 1.8E-01 2.5E-02 2.5E-02 6.0E-02 1.3E-03 2.2E-02 3.4E-05 1.8E-04 3.0E-03 Midpoint Plume4 12.1 13.6 1.2E-02 6.8E-03 6.8E-03 1.1E-02 2.5E-04 1.9E-03 1.9E-05 2.5E-05 1.6E-03 Midpoint Plume5 13.6 15.5 4.1E-02 1.5E-02 1.5E-02 1.9E-02 4.3E-03 1.3E-02 2.3E-04 2.2E-03 1.0E-02 Midpoint Plume6 15.5 20.9 3.8E-02 7.8E-02 1.6E-02 5.9E-03 5.9E-04 3.8E-04 2.1E-05 6.0E-04 7.6E-04 Midpoint Plume7 20.9 24.4 3.6E-04 3.6E-02 3.0E-02 2.4E-02 1.4E-06 0.0E+00 1.0E-07 3.4E-06 1.3E-06 Midpoint Plume8 24.4 58.4 0.0E+00 9.5E-03 9.7E-02 9.5E-02 0.0E+00 0.0E+00 1.7E-08 9.3E-07 0.0E+00 Midpoint

STC-04 Plume1 10.5 11.0 6.3E-01 1.4E-01 1.5E-01 3.1E-02 7.8E-03 4.6E-03 5.4E-05 5.5E-04 9.6E-03 Leading Plume2 11.0 12.0 2.4E-01 2.9E-02 2.9E-02 1.1E-01 4.0E-03 2.0E-02 5.7E-05 4.4E-04 6.2E-03 Midpoint Plume3 12.0 12.3 4.4E-02 1.1E-02 1.1E-02 2.3E-02 4.6E-04 1.1E-02 1.0E-05 4.2E-05 1.4E-03 Midpoint Plume4 12.3 13.7 1.3E-02 5.8E-03 5.8E-03 9.6E-03 6.1E-04 2.9E-03 4.0E-05 2.3E-04 2.5E-03 Midpoint Plume5 13.7 15.1 2.7E-02 1.2E-02 1.2E-02 1.3E-02 3.6E-03 1.1E-02 1.9E-04 1.9E-03 8.5E-03 Midpoint Plume6 15.1 29.0 5.0E-02 5.6E-02 4.6E-02 5.9E-02 9.5E-04 1.3E-03 4.1E-05 8.0E-04 1.5E-03 Midpoint Plume7 29.0 58.4 0.0E+00 1.9E-04 2.3E-02 2.7E-02 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 Midpoint


KEPCO & KHNP A10

Non-Proprietary

STC Plume No.

Start Time

End Time



STC-06 Plume1 1.8 2.1 2.9E-02 9.5E-03 9.5E-03 2.9E-04 2.5E-05 1.7E-05 7.5E-07 7.5E-06 4.6E-05 Leading Plume2 2.1 3.4 6.3E-02 9.8E-03 9.2E-03 1.0E-02 2.1E-04 1.5E-04 6.3E-06 5.2E-05 2.6E-04 Midpoint Plume3 3.4 3.8 1.3E-01 1.4E-02 1.1E-02 1.3E-02 6.3E-04 4.0E-04 2.7E-05 3.0E-04 7.2E-04 Midpoint Plume4 3.8 6.5 1.7E-01 1.6E-03 1.1E-03 2.1E-03 2.2E-03 4.2E-05 1.4E-04 2.9E-03 1.0E-03 Midpoint Plume5 6.5 49.7 5.6E-01 2.5E-04 1.2E-04 8.1E-04 5.1E-05 1.3E-07 4.5E-06 1.2E-04 3.2E-05 Midpoint


Plume4 139.9 207.4 2.5E-03 1.3E-02 2.1E-02 2.0E-02 0.0E+00 0.0E+00 0.0E+00 0.0E+00 2.7E-05 Midpoint

Plume5 207.4 264.8 0.0E+00 3.1E-03 1.4E-03 1.5E-03 0.0E+00 0.0E+00 0.0E+00 0.0E+00 4.1E-10 Midpoint

STC-08 Plume1 67.2 72.7 8.9E-01 1.8E-01 1.6E-01 1.5E-01 3.4E-03 2.8E-02 5.5E-05 4.6E-04 6.9E-03 Leading Plume2 72.7 74.5 5.1E-02 2.5E-02 1.0E-02 1.2E-02 2.0E-04 4.7E-04 2.9E-06 5.4E-05 2.0E-04 Midpoint Plume3 74.5 86.9 2.3E-02 3.0E-03 9.2E-04 1.6E-03 3.3E-04 1.2E-05 2.1E-06 1.4E-04 1.6E-04 Midpoint Plume4 86.9 110.1 1.9E-02 2.1E-02 8.0E-03 4.3E-03 6.6E-07 0.0E+00 7.2E-09 5.6E-07 1.6E-05 Midpoint



Plume7 213.0 265.0 0.0E+00 3.1E-03 9.2E-04 1.1E-03 0.0E+00 0.0E+00 0.0E+00 0.0E+00 3.3E-07 Midpoint



KEPCO & KHNP A11

Non-Proprietary

STC Plume No.

Start Time

End Time


Plume4 5.1 5.6 1.8E-05 3.7E-08 4.3E-09 3.5E-09 5.6E-10 3.1E-09 1.3E-11 9.0E-11 4.0E-09 Midpoint Plume5 5.6 9.5 1.4E-04 9.0E-08 1.3E-08 8.8E-09 6.6E-10 1.4E-09 1.7E-11 6.2E-11 3.3E-09 Midpoint Plume6 9.5 10.7 4.1E-05 9.8E-09 1.4E-09 4.1E-10 2.8E-09 2.7E-11 1.2E-10 2.4E-10 4.2E-09 Midpoint Plume7 10.7 22.4 4.0E-04 3.6E-08 5.2E-09 1.6E-09 1.1E-08 5.6E-09 1.7E-10 1.4E-09 1.6E-08 Midpoint Plume8 22.4 50.4 8.9E-04 1.3E-08 9.2E-10 2.3E-11 2.7E-10 0.0E+00 2.4E-12 1.8E-11 3.2E-11 Midpoint

STC-10 Plume1 1.7 8.3 2.5E-04 1.6E-05 1.4E-05 2.0E-05 3.6E-07 2.8E-07 1.2E-08 9.2E-08 4.4E-07 Leading Plume2 8.3 23.7 6.8E-04 7.5E-06 1.8E-06 2.0E-06 3.0E-08 3.5E-08 1.1E-09 7.1E-09 4.5E-08 Midpoint Plume3 23.7 25.5 8.4E-05 6.1E-07 8.9E-08 2.5E-08 1.1E-10 1.3E-10 4.0E-12 2.6E-11 1.7E-10 Midpoint Plume4 25.5 49.7 1.1E-03 1.1E-07 1.6E-08 3.5E-09 1.0E-11 1.3E-11 3.9E-13 2.4E-12 1.6E-11 Midpoint


Plume6 256.6 283.8 2.4E-03 8.3E-07 1.6E-06 5.9E-06 7.5E-08 6.2E-07 0.0E+00 0.0E+00 0.0E+00 Midpoint

STC-12 No sequences are assigned to this release category. STC-13 Plume1 3.4 5.2 6.2E-01 4.9E-02 3.2E-02 5.5E-02 1.0E-03 2.1E-03 2.9E-05 2.5E-04 1.1E-03 Leading

Plume2 5.2 12.5 3.5E-01 1.8E-02 5.1E-03 6.3E-03 9.9E-05 2.1E-04 2.8E-06 2.4E-05 1.2E-04 Midpoint Plume3 12.5 20.6 3.1E-02 6.9E-02 9.1E-03 4.5E-03 2.6E-07 5.5E-07 7.3E-09 6.3E-08 2.9E-07 Midpoint

Plume4 20.6 25.0 1.3E-03 1.6E-02 2.2E-03 7.0E-04 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 Midpoint


Plume6 29.7 49.7 0.0E+00 8.2E-04 1.9E-04 7.5E-05 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 Midpoint

STC-14 Plume1 2.1 26.7 1.2E-02 4.0E-05 1.5E-05 1.9E-05 1.2E-06 1.7E-07 7.0E-08 1.2E-06 7.5E-07 Leading Plume2 26.7 41.7 6.9E-01 1.5E-03 3.4E-04 1.3E-04 5.1E-08 3.2E-08 2.4E-09 2.6E-08 5.8E-06 Midpoint


KEPCO & KHNP A12

Non-Proprietary

STC Plume No.

Start Time

End Time


Plume3 41.7 46.5 8.9E-02 1.3E-04 1.2E-04 1.9E-04 1.1E-08 1.4E-08 4.4E-10 3.0E-09 2.2E-06 Midpoint Plume4 46.5 75.0 1.6E-01 5.5E-04 1.6E-04 6.2E-04 3.0E-08 8.1E-08 1.1E-09 7.5E-09 9.9E-06 Midpoint Plume5 75.0 99.6 3.8E-02 4.1E-04 1.0E-04 1.4E-03 1.1E-08 6.6E-08 3.1E-10 1.1E-09 7.2E-06 Midpoint

STC-15 No sequences are assigned to this release category. STC-16 Plume1 2.0 24.0 2.0E-03 4.7E-05 1.6E-05 1.8E-05 1.2E-06 1.9E-07 6.9E-08 1.2E-06 7.2E-07 Leading

Plume2 24.0 44.8 7.7E-01 9.9E-03 1.6E-03 7.8E-04 2.2E-07 9.3E-08 1.5E-08 2.9E-07 2.0E-06 Midpoint Plume3 44.8 97.0 2.0E-01 4.6E-03 1.3E-03 1.1E-03 5.4E-08 2.3E-07 1.6E-09 1.1E-08 1.2E-06 Midpoint


Plume4 81.5 134.0 2.0E-01 7.0E-06 6.3E-06 1.4E-05 0.0E+00 4.3E-11 0.0E+00 0.0E+00 0.0E+00 Midpoint


STC-19 Plume1 1.9 4.3 8.4E-05 1.2E-05 1.1E-05 1.5E-05 2.7E-07 2.0E-07 8.6E-09 7.3E-08 3.1E-07 Leading Plume2 4.3 72.0 1.3E-02 1.0E-05 3.7E-06 4.8E-06 8.2E-08 1.5E-07 3.0E-09 2.0E-08 1.3E-07 Midpoint




STC-21 Plume1 23.9 25.8 2.1E-04 1.6E-05 1.4E-05 1.9E-05 2.3E-07 3.9E-07 6.9E-09 4.9E-08 3.6E-07 Leading


KEPCO & KHNP A13

Non-Proprietary

STC Plume No.

Start Time

End Time


Plume2 25.8 56.0 1.9E-01 5.8E-05 1.1E-05 5.3E-06 1.8E-08 5.5E-08 5.9E-10 3.5E-09 3.2E-08 Midpoint Plume3 56.0 97.0 8.1E-01 6.6E-05 1.6E-05 1.8E-05 8.5E-10 2.5E-09 2.8E-11 1.6E-10 1.5E-09 Midpoint Plume4 56.0 97.0 1.4E-03 5.0E-02 7.9E-03 7.7E-04 0.0E+00 0.0E+00 0.0E+00 0.0E+00 0.0E+00 Midpoint


KEPCO & KHNP A14

Non-Proprietary

The APR1400 STC timing parameters for WinMACCS, RDOALARM, RDREFTIM, RDPLDUR, and RDPDELAY, were taken from specific MAAP analyses (Reference 7) that were performed in support of the Level 3 analysis. The heat content of the release segment, parameter RDPLHEAT, was conservatively set to zero (0.00E+00 watts) for this Level 3 analysis.

Other terms associated with the release times are shown below. They are assigned to each source term according to the STC number. Each release plume has multiple segments. The early rupture and the bypass releases are essentially puff releases and the early leak and late failures are more continuous. The timing data are shown below.

For STCs where there is no containment failure (9 and 10), it is assumed that designed containment leakage will occur, and the release height will be equal to the highest release height of the other STCs, 27.7 ft.

STC Plume OALARM (S) NUMREL MAXRIS REFTIM

(s) PLHEAT2

(watts) PLHITE

(m) PLUDUR3

(s) PDELAY4

(s) STC-01 Plume1 126000 4 1 0.0 0.00E+00 17.6 9360 126000

Plume2 126000 0.5 0.00E+00 17.6 18360 135360 Plume3 126000 0.5 0.00E+00 17.6 24480 153720 Plume4 126000 0.5 0.00E+00 17.6 *86400 178200

STC-02 Plume1 163800 3 1 0.0 0.00E+00 17.6 720 163800 Plume2 163800 0.5 0.00E+00 17.6 79560 164520 Plume3 163800 0.5 0.00E+00 17.6 *86400 244080

STC-03 Plume1 36720 8 1 0.0 0.00E+00 0.0 2880 36720 Plume2 36720 0.5 0.00E+00 0.0 3240 39600 Plume3 36720 0.5 0.00E+00 0.0 720 42840 Plume4 36720 0.5 0.00E+00 0.0 5400 43560 Plume5 36720 0.5 0.00E+00 0.0 6840 48960 Plume6 36720 0.5 0.00E+00 0.0 19440 55800 Plume7 36720 0.5 0.00E+00 0.0 12600 75240 Plume8 36720 0.5 0.00E+00 0.0 *86400 87840


KEPCO & KHNP A15

Non-Proprietary


(s) PLHEAT2

(watts) PLHITE

(m) PLUDUR3

(s) PDELAY4

(s) STC-04 Plume1 37800 7 1 0.0 0.00E+00 0.0 1800 37800

Plume2 37800 0.5 0.00E+00 0.0 3600 39600 Plume3 37800 0.5 0.00E+00 0.0 1080 43200 Plume4 37800 0.5 0.00E+00 0.0 5040 44280 Plume5 37800 0.5 0.00E+00 0.0 5040 49320 Plume6 37800 0.5 0.00E+00 0.0 50040 54360 Plume7 37800 0.5 0.00E+00 0.0 *86400 104400

STC-05 Plume1 9360 3 1 0.0 0.00E+00 0.0 3240 9360 Plume2 9360 0.5 0.00E+00 0.0 1800 12600 Plume3 9360 0.5 0.00E+00 0.0 *86400 14400

STC-06 Plume1 6480 5 1 0.0 0.00E+00 0.0 1080 6480 Plume2 6480 0.5 0.00E+00 0.0 4680 7560 Plume3 6480 0.5 0.00E+00 0.0 1440 12240 Plume4 6480 0.5 0.00E+00 0.0 9720 13680 Plume5 6480 0.5 0.00E+00 0.0 *86400 23400

STC-07 Plume1 245520 5 1 0.0 0.00E+00 17.1 31680 245520 Plume2 245520 0.5 0.00E+00 17.1 48600 277200 Plume3 245520 0.5 0.00E+00 17.1 *86400 325800 Plume4 245520 0.5 0.00E+00 17.1 *86400 *345600 Plume5 245520 0.5 0.00E+00 17.1 *86400 *345600

STC-08 Plume1 241920 7 1 0.0 0.00E+00 27.7 19800 241920 Plume2 241920 0.5 0.00E+00 27.7 6480 261720 Plume3 241920 0.5 0.00E+00 27.7 44640 268200 Plume4 241920 0.5 0.00E+00 27.7 83520 312840 Plume5 241920 0.5 0.00E+00 27.7 *86400 *345600 Plume6 241920 0.5 0.00E+00 27.7 *86400 *345600 Plume7 241920 0.5 0.00E+00 27.7 *86400 *345600


KEPCO & KHNP A16

Non-Proprietary


(s) PLHEAT2

(watts) PLHITE

(m) PLUDUR3

(s) PDELAY4

(s) STC-091 Plume1 9360 8 1 0.0 0.00E+00 27.7* 5400 9360

Plume2 9360 0.5 0.00E+00 27.7* 1440 14760 Plume3 9360 0.5 0.00E+00 27.7* 2160 16200 Plume4 9360 0.5 0.00E+00 27.7* 1800 18360 Plume5 9360 0.5 0.00E+00 27.7* 14040 20160 Plume6 9360 0.5 0.00E+00 27.7* 4320 34200 Plume7 9360 0.5 0.00E+00 27.7* 42120 38520 Plume8 9360 0.5 0.00E+00 27.7* *86400 80640

STC-101 Plume1 6120 4 1 0.0 0.00E+00 27.7* 23760 6120 Plume2 6120 0.5 0.00E+00 27.7* 55440 29880 Plume3 6120 0.5 0.00E+00 27.7* 6480 85320 Plume4 6120 0.5 0.00E+00 27.7* *86400 91800

STC-11 Plume1 6120 6 1 0.0 0.00E+00 0.0 11160 6120 Plume2 6120 0.5 0.00E+00 0.0 28440 17280 Plume3 6120 0.5 0.00E+00 0.0 46080 45720 Plume4 6120 0.5 0.00E+00 0.0 *86400 91800 Plume5 6120 0.5 0.00E+00 0.0 *86400 301320 Plume6 6120 0.5 0.00E+00 0.0 *86400 *345600

STC-12 No sequences are assigned to this release category. STC-13 Plume1 12240 6 1 0.0 0.00E+00 27.7 6480 12240

Plume2 12240 0.5 0.00E+00 27.7 26280 18720 Plume3 12240 0.5 0.00E+00 27.7 29160 45000 Plume4 12240 0.5 0.00E+00 27.7 15840 74160 Plume5 12240 0.5 0.00E+00 27.7 16920 90000 Plume6 12240 0.5 0.00E+00 27.7 72000 106920


KEPCO & KHNP A17

Non-Proprietary


(s) PLHEAT2

(watts) PLHITE

(m) PLUDUR3

(s) PDELAY4

(s) STC-14 Plume1 7560 5 1 0.0 0.00E+00 17.1 *86400 7560

Plume2 7560 0.5 0.00E+00 17.1 54000 96120 Plume3 7560 0.5 0.00E+00 17.1 17280 150120 Plume4 7560 0.5 0.00E+00 17.1 *86400 167400 Plume5 7560 0.5 0.00E+00 17.1 *86400 270000

STC-15 No sequences are assigned to this release category. STC-16 Plume1 7200 3 1 0.0 0.00E+00 17.1 79200 7200

Plume2 7200 0.5 0.00E+00 17.1 74880 86400 Plume3 7200 0.5 0.00E+00 17.1 *86400 161280

STC-17 Plume1 7200 4 1 0.0 0.00E+00 17.1 19800 7200 Plume2 7200 0.5 0.00E+00 17.1 *86400 27000 Plume3 7200 0.5 0.00E+00 17.1 70920 222480 Plume4 7200 0.5 0.00E+00 17.1 *86400 293400

STC-18 Plume1 6480 5 1 0.0 0.00E+00 17.1 *86400 6480 Plume2 6480 0.5 0.00E+00 17.1 7560 95400 Plume3 6480 0.5 0.00E+00 17.1 32040 102960 Plume4 6480 0.5 0.00E+00 17.1 *86400 135000 Plume5 6480 0.5 0.00E+00 17.1 *86400 268560

STC-19 Plume1 6840 4 1 0.0 0.00E+00 17.1 8640 6840 Plume2 6840 0.5 0.00E+00 17.1 *86400 15480 Plume3 6840 0.5 0.00E+00 17.1 *86400 259200 Plume4 6840 0.5 0.00E+00 17.1 *86400 *345600

STC-20 Plume1 86040 3 1 0.0 0.00E+00 17.1 6840 86040 Plume2 86040 0.5 0.00E+00 17.1 *86400 92880 Plume3 86040 0.5 0.00E+00 17.1 *86400 201600


KEPCO & KHNP A18

Non-Proprietary


(s) PLHEAT2

(watts) PLHITE

(m) PLUDUR3

(s) PDELAY4

(s) STC-21 Plume1 86040 4 1 0.0 0.00E+00 17.1 6840 86040

Plume2 86040 0.5 0.00E+00 17.1 *86400 92880 Plume3 86040 0.5 0.00E+00 17.1 *86400 201600 Plume4 86040 0.5 0.00E+00 17.1 *86400 201600

Notes: 1. STCs 9 and 10 occur inside containment. However, to account for designed containment leakage, the plume release height was assumed

equal to the maximum of 27.7 m. 2. Plume heat release rate is conservatively assumed 0.00E+00 watts. 3. The maximum plume duration (PLUDUR) is 1 day (86,400 sec), MACCS2. 4. The maximum start time of each plume segment in seconds from the time of accident initiation (PDELAY) is 4 days (345,600 sec),

MACCS2.


KEPCO & KHNP A19

Non-Proprietary

5.2. EARLY User Input File: "AEARLY.INP"

The AEARLY.INP file provides the main input for the EARLY calculation phase of WinMACCS.

The EARLY module models the time period immediately following a radioactive release. This transient period is commonly referred to as the emergency phase. It may extend up to 1 week after the arrival of the first plume at any downwind spatial interval. The subsequent intermediate and long-term periods are treated by CHRONC. In the EARLY module, the user may specify emergency response scenarios that include evacuation, sheltering, and dose-dependent relocation. The EARLY module has the capability for combining results from up to three different emergency response scenarios. This is accomplished by appending change records to the EARLY input file. The first emergency-response scenario is defined in the main body of the EARLY input file. Up to two additional emergency-response scenarios can be defined through change record sets positioned at the end of the file.

The emergency evacuation model was modeled as a single evacuation zone extending out 10 miles from the plant. The average evacuation speed is estimated (Reference 6, Table 4.2-1) to be approximately 1.8 m/s (4 mph). For the purpose of this analysis, an average evacuation speed of 1.8 m/s is used with a 7,200 sec delay between the alarm and start of evacuation, with no sheltering for the base case.

A sensitivity case for the important evacuation parameters was run and is described in the Detailed Calculations and Results sections below.

To demonstrate the possible significance of these assumptions, a sensitivity WinMACCS run (Case 4) was made with the alarm times and the delay times arbitrarily reduced by 0.5 hr (1,800 sec). The results, which are reported in the Summary of Results section, demonstrate that the WinMACCS consequences are not significantly sensitive to the timings used.

5.3. CHRONC User Input File: "ACHRONC.INP"

This file provides the main input for the CHRONC calculation phase of WinMACCS. It calculates the long-term dose impact on the population.

The CHRONC module simulates the events that occur following the emergency-phase time period modeled by EARLY. CHRONC calculates the total accumulated dose received by a population after the emergency phase or starting on about the 8th day, up to 50 years of time. Various long-term protective actions may be taken during this period to limit radiation doses to acceptable levels. CHRONC calculates the individual health effects that result from both (1) direct exposure to contaminated ground and inhalation of resuspended materials as well as (2) indirect health effects caused by the consumption of contaminated food and water by individuals who could reside both on and off the computational grid. CHRONC also calculates the economic costs of the long-term protective actions as well as the cost of the emergency response actions that were modeled in the EARLY module.

Economic costs are the recommended MACCS values as given for the NUREG-1150 study (Reference 9) updated using recent Consumer Price Indexes from the Bureau of Labor (Reference 10). Reference 9 uses economic values that are based on 1986 Consumer Price Index. From Reference 10, values for the CPI of 108.9 for 1986 and 127.9 for 1990 were obtained. Therefore, the unit costs from Reference 9 were multiplied by a factor of 1.17 (=127.9/108.9) to represent revised SPS region values.

Additionally, from Reference 10, a CPI value of 218.6 for 2011 was obtained. Sensitivity unit costs from Reference 9 were multiplied by a factor of 2.01 (=218.6/108.9) to represent current APR1400 (Surry) region values (Case 5).


KEPCO & KHNP A20

Non-Proprietary

Applying the above CPI factors on the selected Reference 9 CHRONC input data yields the following:

Parameter Values in Reference 9 Multiplier Adjusted New Values CHEVACST 27.0 2.01 54.3 CHRELCST 27.0 2.01 54.3 CHCDFRM 562.5 1250.0 1.17 658.1 1463.0 CHCDFRM1 562.5 1250.0 2.01 1130.0 2512.0 CHCDNFRM 3000.0 8000.0 1.17 3510.0 9360.0 CHCDNFRM1 3000.0 8000.0 2.01 6030.0 16080.0 CHPOPCST 5000. 2.01 10050.0 Note 1: For Sensitivity Case 5

These CHRONC input parameters are defined as: CHEVACST Daily cost for a person who is evacuated ($/person-day) CHRELCST Daily cost for a person who is relocated ($/person-day) CHCDFRM Cost of farm decontamination per farmland unit area ($/hectare) CHCDNFRM Cost of nonfarm decontamination per resident person ($/person) CHPOPCST Population relocation cost ($/person)

The average cost of decontamination labor CHDLBCST ($/man-year) was obtained from the NUREG/CR-3673, Economic Risks of Nuclear Power Reactor Accidents report (Reference 16). This value is in terms of 1984 dollars (CPI = 96.5) and is multiplied by a factor of 2.27 (= 218.6/96.5) to update it to 2011 dollars (CPI = 218.6).

Parameter Values in Reference 17 Multiplier Adjusted New Values CHDLBCST 30000.0 2.27 68100.0

The average farm wealth value CHVALWF ($/hectare) was calculated as the average of the corresponding non-zero values of Farmland Property Value (VFRM) in the Regional Economic Data block of the SITE file and dividing by the total number of non-zero regions. This value includes both publicly and privately owned grazing lands, farmland, farm buildings, and non-recoverable farm machinery, as well as any publicly owned infrastructure serving the farm industry. The average value is listed below.

CHVALWF 12,137.0 ($/hectare)

The average non-farm wealth value CHVALWNF ($/person) was calculated as the average of the corresponding non-zero values of Non-Farmland Property Value (VNFRM) in the Regional Economic Data block of the SITE file and dividing by the total number of non-zero regions. Nonfarm wealth includes all public and private property not associated with farming that would be unusable if the region was rendered either temporarily or permanently uninhabitable. The average value is listed below.

CHVALWNF 241,883.0 ($/person)

5.4. Meteorological Data File: “metsurMxHt_60min.inp"

This file describes 1 year's (1988) worth of hourly meteorological data for the plant as recorded at the site meteorological tower. This original data file (metsurMxHt_60min.inp) is a sample meteorological data file provided with the WinMACCS software. The data file consists of the hourly data (wind direction, wind speed, stability category, and precipitation) and is used as is.


KEPCO & KHNP A21

Non-Proprietary

5.5. SITE Data File: “ASITE.INP”

The population distribution and land use information for the region surrounding the site are specified in the site data file. Contained in the site data file are the geometry data used for the site (spatial intervals and wind directions), population distribution, fraction of the area that is land, watershed data for the liquid pathways model, information on agricultural land use and growing seasons, and regional economic information. Some of the detailed data in this file supersedes certain data in the EARLY input file.

Population Distribution 5.5.1.

The most recent version of the SECPOP computer program, SECPOP2000 (Reference 11), was used to process block-level 2000 Census data (Reference 12), as extracted to the SECPOP2000 reference data files, to prepare population estimates for the region surrounding the plant. Census 2010 data of this detail are not yet available.

The plant location for the Surry Units is taken here to be the same as listed in SECPOP2000 for the Surry site, i.e., latitude 37°9’56”N and longitude 76°41’54”W. The 50-mile radius area around the plant was divided into 16 directions that are equivalent to a standard navigational compass rosette. This rosette was further divided into 10 "inner" radial rings, each with 16 azimuthal sections. Part of the innermost ring (0.65-mile radius) is considered to be the exclusion zone without a resident population. A picture of the rosette for Surry is shown in Attachment I.

The SECPOP2000 algorithm for determining the population resident in each segment of each radial annulus is the same as used in SECPOP90, the only difference being the 2000 Census as the basis year. Further population estimates and projections beyond 2000 have to be pursued outside SECPOP2000 ("post-processing") as only county data are available, not the census block data relied upon by SECPOP2000. The segment population distribution prepared with SECPOP2000 is shown in Table 5.5.1-1.

The extension to 2030 is accomplished in steps – from 2000 to 2010, and then from 2010 to 2030, on a county-by-county basis (because of the difference in the information available). Two sets of county growth factors were developed, one for each of these two steps. Finally, a segment specific growth factor was developed based on the area-weighted growth contribution from each of its component counties.

The county 2000-2010 growth factors are developed directly as the 2010 county population estimate divided by the 2000 county population estimate listed in the 2000 and 2010 Census Bureau population results in Reference 12. The results are shown in Table 5.5.1-1.

The average total population growth from 2000 to 2010 for the 45 counties or independent cities that are all or partly within 50 miles of the Surry site is 109 percent. The smallest is 87 percent and the largest is 145 percent. The six counties or cities within 10 miles grew by 100, 103, 105, 116, 119, and 139 percent. Because the weighting factors are based on real census numbers and because of the limited range of growth, the method of preparing the 2010 segment population growth is considered to be sufficiently robust.

A similar process was used to develop the growth factors for each county for the 2010 to 2030 period. In this step, the Census Bureau data were replaced by Virginia and North Carolina State government projections of future populations by county prepared as part of the Virginia Workforce Connection Population Projections Program (Reference 17) and the North Carolina Office of State Budget and Management (Reference 18). The county 2010-2030 growth factors are developed directly as the ratio of the projection for 2030 divided by the projection for 2010. These are shown in Table 5.5.1-2.


KEPCO & KHNP A22

Non-Proprietary

For each rosette segment, the fraction of its area in each component county was estimated. Each segment's growth factor was then calculated as the sum of the products of each component county area fraction multiplied by that county's 2000-2010 growth factors and by that county's 2010-2030 growth factor.

Because of the very small population (<100) in the 0 to 1 mile radial annulus, no attempt was made to estimate growth, and a constant factor of 1.0 was used.

The final year 2030 segment populations were then calculated as the product of the detailed Census 2000 data (see Table 5.5.1-3) multiplied by the individual segment growth factors (see Table 5.5.1-4). Transient population data were not available for the 50-mile radius around the Surry site and were not included in this version of the APR1400 Level 3 analysis.

The projected 2030 segment populations developed through the preceding steps are shown in Table 5.5.1-5. These are the population numbers used for the WinMACCS site INP file (ASITE.INP), replacing the raw SECPOP2000 data.

Land Fractions 5.5.2.

SECPOP2000 calculates the land fraction for each rosette section as explained in the manual for the code (Reference 11). The code contains a county-level database with the land fractions for each county obtained from the 2000 Census data files (Reference 12). The calculated values are used directly in these analyses. Due to the way in which SECPOP2000 allocates population from the census blocks, certain of the radial blocks near the plant are shown as all water. These segments have zero population so that the effect on the results is not significant.

Region Index 5.5.3.

The region indexes were selected to allow unique region numbers for the sectors with large areas, that is, the very small regions of the rosette near the plant were assigned to similar regions. This is required because SECPOP90 has a limit of 99 regions only.

Watershed Index 5.5.4.

For Surry, the original SECPOP90-produced watershed indexes for the Surry site were used directly in this analysis. These values were chosen to more accurately model the landmass and bodies of water surrounding the site up to the 80.47 km (50 mile) radius of this analysis. This is represented by specifying a 1 or 2 for each coordinate as shown in the ASITE input data file in Attachment II.

Crop Season and Share 5.5.5.

The crop season data were taken from the NUREG-1150 analysis for Surry (Reference 9). Agricultural data available in the 1997 Census of Agriculture (Reference 15) were used to produce the land fraction used for each crop.

Watershed Definition 5.5.6.

The crop season data were assumed to be the same as for the Surry site and were taken from the NUREG-1150 analysis for Surry (Reference 9).


KEPCO & KHNP A23

Non-Proprietary

Regional Economic Data 5.5.7.

The regional economic data are calculated by SECPOP2000 from data provided in a data file named County1997RG.dat (described in Reference 11). This file was updated (a pre-processing step) to 2007 for the 45 counties and independent cities that are all or in part within 50 miles of the Surry site (County1997RG_APR1400DC.dat). The other some 3,000 county data sets in the file for the rest of the United States were left unchanged (except for some unrelated format changes necessary to work around two discrepancies noted by the SECPOP2000 team).

The selected SECPOP2000 regional economic values were updated to 2007 using data from the Bureau of the Census and the Department of Agriculture 2007 Census of Agriculture (Reference 19). Table 5.5.7-1 lists the update changes to County1997RG.dat, County1997RG_APR1400DC.dat.


KEPCO & KHNP A24

Non-Proprietary

Table 5.5.1-1 (1 of 2) Virginia / North Carolina County Population Growth, 2000 to 2010

Increase 2000-2010

Factor % 2010 CENS 1-Jul-09 1-Jul-08 2000 Census

VIRGINIA

.Accomack County 0.87 87% 33164 38,462 38,395 38,305

.Charles City County 1.05 105% 7,256 7,217 7,213 6,926

.Chesterfield County 1.22 122% 316,236 306,670 303,852 259,903

.Dinwiddie County 1.14 114% 28,001 26,338 26,299 24,533

.Essex County 1.12 112% 11,151 11,189 11,007 9,989

.Gloucester County 1.06 106% 36,858 39,184 38,693 34,780

.Greensville County 1.06 106% 12,243 12,049 11,973 11,560

.Hanover County 1.16 116% 99,863 99,933 99,583 86,320

.Henrico County 1.17 117% 306,935 296,415 292,693 262,300

.Isle of Wight County 1.19 119% 35,270 35,877 35,553 29,728

.James City County 1.39 139% 67,009 63,735 62,410 48,102

.King and Queen County 1.05 105% 6,945 6,796 6,820 6,630

.King William County 1.21 121% 15,935 16,225 15,987 13,146

.Lancaster County 0.98 98% 11,391 11,230 11,382 11,567

.Mathews County 0.98 98% 8,978 8,984 9,050 9,207

.Middlesex County 1.10 110% 10,959 10,731 10,691 9,932

.New Kent County 1.37 137% 18,429 18,112 17,731 13,462

.Northampton County 0.95 95% 12,389 13,492 13,457 13,093

.Northumberland County 1.01 101% 12,330 12,995 12,991 12,259

.Prince George County 1.08 108% 35,725 37,116 36,473 33,047

.Richmond County 1.05 105% 9,254 8,961 9,117 8,809

.Southampton County 1.06 106% 18,570 18,483 18,582 17,482

.Surry County 1.03 103% 7,058 7,088 7,096 6,829

.Sussex County 0.97 97% 12,087 12,116 12,135 12,504

.York County 1.16 116% 65,464 61,140 61,399 56,297

.Chesapeake city 1.12 112% 222,209 222,455 220,319 199,184

.Colonial Heights city 1.03 103% 17,411 17,823 17,689 16,897

.Franklin city 1.03 103% 8,582 8,814 8,830 8,346

.Hampton city 0.94 94% 137,436 144,236 145,256 146,437


KEPCO & KHNP A25

Non-Proprietary

Table 5.5.1-1 (2 of 2)

Increase 2000-2010

Factor % 2010 CENS 1-Jul-09 1-Jul-08

VIRGINIA (cont.)

.Hopewell city 1.01 101% 22,591 23,123 23,206 22,354

.Newport News city 1.00 100% 180,719 193,172 193,212 180,150

.Norfolk city 1.04 104% 242,803 233,333 234,653 234,403

.Petersburg city 0.96 96% 32,420 32,986 33,111 33,740

.Poquoson city 1.05 105% 12,150 11,794 11,797 11,566

.Portsmouth city 0.95 95% 95,535 99,321 99,542 100,565

.Richmond city 1.03 103% 204,214 204,451 202,867 197,790

.Suffolk city 1.33 133% 84,585 83,659 82,420 63,677

.Virginia Beach city 1.03 103% 437,994 433,575 432,228 425,257

.Williamsburg city 1.17 117% 14,068 12,729 12,437 11,998

NORTH CAROLINA

Camden County 1.45 145% 9,980 9,730 9,632 6,885

Currituck County 1.29 129% 23,547 24,216 24,160 18,190

Gates County 1.16 116% 12,197 11,768 11,746 10,516

Hertford County 1.09 109% 24,669 23,283 23,357 22,601

Northampton County 1.00 100% 22,099 20,136 20,459 22,086

Pasquotank County 1.17 117% 40,661 41,578 41,442 34,897


KEPCO & KHNP A26

Non-Proprietary

Table 5.5.1-2 (1 of 2) Virginia / North Carolina County Population Growth, 2010 to 2030

Area 10-30 factor 2010 2020 2030 VIRGINIA

Accomack County 1.10 40,245 42,185 44,249 Charles City County 1.18 7,431 7,932 8,749 Chesterfield County 1.35 318,810 372,532 430,266 Dinwiddie County 1.30 28,874 33,075 37,563 Essex County 1.18 10,969 11,960 12,974 Gloucester County 1.28 40,474 46,013 51,824 Greensville County 1.02 11,611 11,691 11,808 Hanover County 1.36 105,762 124,097 143,959 Henrico County 1.26 301,658 339,703 379,041 Isle of Wight County 1.39 37,067 44,083 51,629 James City County 1.52 65,890 82,781 100,294 King and Queen County 1.10 6,891 7,187 7,564 King William County 1.37 16,187 19,119 22,227 Lancaster County 1.00 11,485 11,477 11,478 Mathews County 1.00 9,097 9,077 9,068 Middlesex County 1.20 11,012 12,055 13,181 New Kent County 1.58 18,681 23,671 29,496 Northampton County 1.14 13,990 14,932 15,931 Northumberland County 1.18 13,420 14,587 15,821 Prince George County 1.47 43,258 53,061 63,420 Richmond County 1.13 9,333 9,900 10,512 Southampton County 1.02 17,507 17,604 17,795 Surry County 1.13 7,210 7,585 8,156 Sussex County 0.96 11,543 11,119 11,113 York County 1.30 66,569 76,376 86,823 Chesapeake city 1.30 236,683 272,381 308,736 Colonial Heights city 1.13 18,035 19,204 20,454 Franklin city 1.13 8,809 9,348 9,930 Hampton city 1.00 144,803 144,655 144,650 Hopewell city 1.05 22,767 23,298 23,993 Newport News city 1.01 181,601 182,415 183,372 Norfolk city 1.01 236,338 237,448 238,927 Petersburg city 0.97 31,594 30,734 30,730 Poquoson city 1.07 11,921 12,281 12,782 Portsmouth city 1.01 99,919 100,429 101,071 Richmond city 0.98 190,039 187,066 187,066 Suffolk city 1.61 93,830 122,482 151,427 Virginia Beach city 1.10 447,836 470,288 493,095 Williamsburg city 1.03 13,707 13,866 14,159


KEPCO & KHNP A27

Non-Proprietary

Table 5.5.1-2 (2 of 2)

Area 10-30 factor 2010 2020 2030 NORTH CAROLINA

Camden County 1.04 9,980 10,184 10,364 Currituck County 1.33 23,547 27,490 31,324 Gates County 1.28 12,197 13,686 15,578 Hertford County 0.97 24,669 24,334 23,972 Northampton County 0.86 22,099 20,579 19,100 Pasquotank County 1.00 40,661 40,484 40,484

2010, 2020, 2030 data from virginia.gov virginia workforce Connection Population Projections

2010, 2020, 2030 data from www.osbm.state.nc.us NC Office of State Budget and Management


KEPCO & KHNP A28

Non-Proprietary

Table 5.5.1-3 SECPOP2000 Year 2000 Population per Segment

1 mile

2 miles

3 miles

4 miles

5 miles

10 miles

20 miles

30 miles

40 miles

50 miles

N 0 0 0 0 194 13621 4966 3915 3316 4185 NNE 0 0 0 0 1587 8172 8571 9257 10679 7245 NE 0 6 0 0 0 2389 8449 6949 3087 0

ENE 0 0 0 0 0 4642 11026 1250 104 5504 E 0 0 0 0 0 29073 38809 225 1652 1762

ESE 0 0 0 0 0 28592 154822 106715 84663 89346 SE 0 0 0 0 0 0 29734 147851 424148 183598

SSE 0 25 25 0 109 361 15011 28509 25952 4579 S 0 0 2 213 70 1062 2883 7822 14423 6604

SSW 0 3 0 126 76 181 1222 4249 15867 3819 SW 0 0 10 5 89 487 1085 2218 1970 4925

WSW 0 0 8 47 91 886 1390 3520 4452 3993 WSW 0 0 0 128 144 329 812 3003 61371 38265 WNW 0 0 0 0 43 149 3083 4425 42750 211949 NW 0 0 0 0 0 6887 2342 4384 14241 114454

NNW 0 0 0 0 960 13625 14923 6519 2074 7373


KEPCO & KHNP A29

Non-Proprietary

Table 5.5.1-4 Projected 2000 to 2030 Population Multipliers per Segment

1

mile 2

miles 3

miles 4

miles 5

miles 10

miles 20

miles 30

miles 40

miles 50

miles N 1.00 1.17 1.17 2.12 2.12 1.44 1.65 1.20 1.24 1.22

NNE 1.00 1.17 1.17 2.12 2.12 1.52 1.36 1.35 1.05 1.09 NE 1.00 1.17 1.17 2.12 2.12 1.52 1.36 0.97 0.97 0.95

ENE 1.00 1.17 1.17 1.17 2.12 1.52 1.36 0.97 0.97 1.08 E 1.00 1.17 1.17 1.17 2.12 1.27 1.04 1.13 1.08 1.08

ESE 1.00 1.17 1.17 1.17 1.01 1.01 1.11 0.94 1.13 1.13 SE 1.00 1.17 1.17 1.17 1.01 1.01 0.99 1.01 1.21 1.30

SSE 1.00 1.17 1.65 1.65 1.65 1.65 1.65 2.14 1.66 1.48 S 1.00 1.17 1.17 1.17 1.17 1.51 1.65 1.90 2.14 1.68

SSW 1.00 1.17 1.17 1.17 1.17 1.17 1.65 1.37 1.34 1.22 SW 1.00 1.17 1.17 1.17 1.17 1.17 1.17 1.01 1.02 1.05

WSW 1.00 1.17 1.17 1.17 1.17 1.17 1.17 0.93 0.93 0.93 WSW 1.00 1.17 1.17 1.17 1.17 1.17 1.17 1.58 1.49 1.51 WNW 1.00 1.17 1.17 2.12 2.12 2.12 1.32 1.34 1.41 1.48 NW 1.00 1.17 1.17 2.12 2.12 2.12 1.59 1.70 1.93 1.57

NNW 1.00 1.17 1.17 2.12 2.12 2.12 2.12 2.16 1.51 1.35


KEPCO & KHNP A30

Non-Proprietary

Table 5.5.1-5 Projected 2030 Populations per Segment

1 mile

2 miles

3 miles

4 miles

5 miles

10 miles

20 miles

30 miles

40 miles

50 miles

N 0 0 0 0 411 19648 8194 4708 4095 5089 NNE 0 0 0 0 3364 12421 11657 12515 11192 7861 NE 0 7 0 0 0 3631 11491 6741 2994 0 ENE 0 0 0 0 0 7056 14995 1213 101 5944 E 0 0 0 0 0 36777 40458 254 1784 1903 ESE 0 0 0 0 0 28878 171543 100312 95669 100961 SE 0 0 0 0 0 0 29511 148590 514279 237759 SSE 0 29 41 0 180 596 24768 61009 43184 6754 S 0 0 2 249 82 1599 4757 14823 30865 11082 SSW 0 4 0 147 89 212 2016 5800 21333 4667 SW 0 0 12 6 104 570 1269 2229 2009 5171 WSW 0 0 9 55 106 1037 1626 3274 4140 3713 WSW 0 0 0 150 168 385 950 4745 91719 57857 WNW 0 0 0 0 91 316 4062 5907 60384 314108 NW 0 0 0 0 0 14600 3714 7431 27471 179521 NNW 0 0 0 0 2035 28885 31637 14081 3126 9983


KEPCO & KHNP A31

Non-Proprietary

Table 5.5.7-1 (1 of 2) County Database Updates for Counties (and Cities) Near Surry

CITY # STATE COUNTY FRMFRC DPF ASFP VFRM VNFRM

1301 VA ACCOMACK 0.326077 0.000059 4031 7473 186532

1319 VA CHARLES CITY 0.234884 0.000000 946 8904 213733

1320 VA CHARLOTTE 0.078079 0.188125 381 6590 269371

1321 VA CHESTERFIELD 0.244558 0.000000 515 13919 200649

1328 VA ESSEX 0.324164 0.000000 457 8011 205437

1336 VA GLOUCESTER 0.164690 0.000000 963 13890 228968

1340 VA GREENSVILLE 0.252079 0.000000 363 6842 151036

1342 VA HANOVER 0.306229 0.080107 1181 13998 285530

1343 VA HENRICO 0.106914 0.001415 1043 13397 278124

1346 VA ISLE OF WIGHT 0.363685 0.000000 774 7813 247255

1347 VA JAMES CITY 0.060126 0.345429 1214 20740 321908

1348 VA KING AND QUEEN 0.263408 0.000000 553 8928 199285

1350 VA KING WILLIAM 0.262745 0.085963 873 9500 224875

1351 VA LANCASTER 0.165303 0.000000 500 10477 236595

1357 VA MATHEWS 0.080225 0.000000 1690 14091 213190

1359 VA MIDDLESEX 0.212325 0.000000 870 12431 240077

1362 VA NEW KENT 0.151853 0.005202 560 13185 266820

1363 VA NORTHAMPTON 0.470790 0.000000 3489 9728 185337

1364 VA NORTHUMBERLAND 0.362500 0.000000 661 9375 246043

1372 VA PRINCE GEORGE 0.234665 0.000000 303 9291 217876

1376 VA RICHMOND 0.304852 0.000000 698 9091 175982

1384 VA SOUTHAMPTON 0.415872 0.000000 545 6399 179439

1387 VA SURRY 0.230263 0.000000 833 8158 204488

1388 VA SUSSEX 0.236578 0.000000 564 7809 146587

1395 VA YORK 0.008455 0.000000 7556 43679 294233

1401 VA CHESAPEAKE CITY 0.213317 0.000000 1721 13294 244806

1403 VA COLONIAL HEIGHTS CITY 0.000000 0.000000 0 0 214885

1409 VA FRANKLIN CITY 0.000000 0.000000 0 0 171406

1412 VA HAMPTON CITY 0.000000 0.000000 0 0 201149

1414 VA HOPEWELL CITY 0.000000 0.000000 0 0 163356

1420 VA NEWPORT NEWS CITY 0.000000 0.000000 0 0 198743


KEPCO & KHNP A32

Non-Proprietary

Table 5.5.7-1 (2 of 2)

CITY # STATE COUNTY FRMFRC DPF ASFP VFRM VNFRM

1421 VA NORFOLK CITY 0.000000 0.000000 0 0 197387

1423 VA PETERSBURG CITY 0.000000 0.000000 0 0 160687

1424 VA POQUOSON CITY 0.000000 0.000000 0 0 298512

1425 VA PORTSMOUTH CITY 0.000000 0.000000 0 0 188693

1427 VA RICHMOND CITY 0.000000 0.000000 0 0 220503

1432 VA SUFFOLK CITY 0.278789 0.000000 1774 11248 240654

1433 VA VIRGINIA BEACH CITY 0.137475 0.000000 1164 15380 257728

1435 VA WILLIAMSBURG CITY 0.000000 0.000000 0 0 168610

1506 NC CAMDEN 0.358416 0.000000 1264 7273 208784

1518 NC CURRITUCK 0.164527 0.000000 1097 8212 213622

1528 NC GATES 0.347979 0.000000 1560 6245 163856

1537 NC HERTFORD 0.347895 0.000000 2639 5071 136842

1557 NC NORTHAMPTON 0.453034 0.000000 1553 6233 143680

1561 NC PASQUOTANK 0.589520 0.000000 1381 6400 178601

FRMFRC fraction of land devoted to farming in region DPF fraction of farm sales resulting from dairy production in region ASFP total annual farm sales for the region ($/hectare) VFRM farmland property value for the region ($/hectare) VNFRM nonfarm property value for the region ($/person)


KEPCO & KHNP A33

Non-Proprietary

6. COMPUTER CODES AND COMPUTER USED

The codes used are WinMACCS 3.7 (Reference 1) and SECPOP2000 (Reference 11), and were run on a Windows 7 (64-bit) Dell Latitude E6530 notebook computer (Intel Core I7-3720QM CPU @ 2.6 GHz, 8.09 GB RAM).


KEPCO & KHNP A34

Non-Proprietary

7. DETAILED CALCULATION

Five WinMACCS runs were executed, one base case plus four sensitivity cases. The base case used the best-estimate values with year 2030 population projections and 1988 meteorological data as described in the next section, and is termed BASE. The base case evacuation modeling was carried out by assuming an evacuation scenario wherein 100 percent of the population is evacuated normally (within the 10-mile emergency zone).

One sensitivity run on evacuation modeling was carried out by assuming an evacuation scenario wherein 90 percent of the population is evacuated normally and 10 percent is not evacuated at all (within the 10-mile emergency zone).

One more sensitivity run was made using a 50 percent decrease in the timing data for the MACCS parameters OALARM, PLDUR, and PDELAY.

One sensitivity run was made for the time to take shelter (MACCS parameter DLTSHL), which used 5,400 sec, whereas the base case used 7,200 sec.

The final sensitivity run was made on the CHRONC economic data parameters CDFRM and CDNFRM using a multiplier of 2.01, whereas a multiplier of 1.17 was used for the base case.


KEPCO & KHNP A35

Non-Proprietary

8. COMPUTER INPUT AND OUTPUT

The base case input files for EARLY, CHRONC, ATMOS, and the SITE are included as Attachment II. The meteorological file is too large and is not included in this document.

The various input sensitivity case input files have descriptive names, and are listed below.

Description

CASE1 BASE CASE: 1988 Met Data, 100% Evac, DLTSHL=7200

CASE2 Sensitivity Case: 90% Evac

CASE3 Sensitivity Case: -50% Timing

CASE4 Sensitivity Case: DLTSHL= 5400

CASE5 Sensitivity Case: CDFRM & CDNFRM x 2.01

The output files are large and are not included in this document for this reason.

The titles of the five input files corresponding to each sensitivity case are listed below.

CASE1 AATMOS.INP AEARLY.INP ACHRONC.INP metsurMxHt_60min.inp ASITE.INP

CASE2 AATMOS.INP AEARLY1.INP ACHRONC.INP metsurMxHt_60min.inp ASITE.INP

CASE3 AATMOS1.INP AEARLY.INP ACHRONC.INP metsurMxHt_60min.inp ASITE.INP

CASE4 AATMOS.INP AEARLY2.INP ACHRONC.INP metsurMxHt_60min.inp ASITE.INP

CASE5 AATMOS.INP AEARLY.INP ACHRONC1.INP metsurMxHt_60min.inp ASITE.INP

The titles of the five output file groups (1 through 19 for each STC) corresponding to each sensitivity case are listed below.

CASE1 BASE CASE: 1998 Met Data, 100% Evac, DLTSHL=7200 Model1_1 Thru _19.OUT

CASE2 Sensitivity Case: 95% Evac Model2_1 Thru _19.OUT

CASE3 Sensitivity Case: -50% Timing Model3_1 Thru _19.OUT

CASE4 Sensitivity Case: DLTSHL= 5400 Model4_1 Thru _19.OUT

CASE5 Sensitivity Case: CDFRM & CDNFRM x 2.01 Model5_1 Thru _19.OUT


KEPCO & KHNP A36

Non-Proprietary

9. SUMMARY OF RESULTS

The following results, Tables 9-1 and 9-2, are extracted from the WinMACCS output files produced for 19 STCs for the BASE CASE and sensitivity cases. Reported here are the offsite dose in sieverts and the offsite economic cost in dollars for each of the 19 containment event tree (CET) end points (release modes). These results are conditional on that release occurring.


KEPCO & KHNP A37

Non-Proprietary

Table 9-1 Summary of Results for Population Dose

TS


KEPCO & KHNP A38

Non-Proprietary

Table 9-2 Summary of Results for Offsite Economic Costs

TS


KEPCO & KHNP A39

Non-Proprietary

10. CONCLUSION

The greatest overall sensitivity was observed for the economic data due to a 50 percent reduction in the timing parameters OALARM, PLDUR, and PDELAY for CASE3.

The sensitivity was observed for the economic data due to a decrease to 90 percent evacuation of the population in CASE2 for STCs 9 and 10. However, these STCs are associated with no containment failure scenarios.

Also some STC-specific sensitivity was noted for CASE5, which used a higher factor (2.01) for the parameters CDFRM and CDNFRM. The sensitivity on the factor of 1.17 vs 2.01 on farm and non-farm decontamination parameters CDFRM and CDNFRM resulted in differences of no more than 10 percent for half of the STCs.

The sensitivity for the parameter DLTSHL, delay time to take shelter (7,200 vs. 5,400 sec) was shown to be insignificant for CASE4.


KEPCO & KHNP A40

Non-Proprietary

11. REFERENCES

1. SAND97-0594, “Code Manual for MACCS2: Volume 1, User’s Guide,” May 1998.

2. RSICC Computer Code Collection MACCS2 V.1.12, CCC-652 Code Package, Oak Ridge National Laboratory, 1997.

3. NUREG/CR-4691, “MELCOR Accident Consequence Code System (MACCS) Model Description,” SAND86-1562, Vol. 2, U.S. Nuclear Regulatory Commission, February 1990.

4. “WinMACCS, a MACCS2 Interface for Calculating Health and Economic Consequences from Accidental Release of Radioactive Material into the Atmosphere User’s Guide and Reference Manual WinMACCS Version 3,” Sandia National Laboratories / U.S. Nuclear Regulatory Commission, August 2007.

5. APR1400-E-P-NR-14001-P, “PRA Summary Report,” Rev. 0, KEPCO E&C.

6. NUREG/CR-4551, Vol. 3, Rev. 1, Part 1, "Evaluation of Severe Accident Risks: Surry 1 Main Report," U.S. Nuclear Regulatory Commission, October 1990.

7. 1-035-N392-602, “Containment Event Tree Analysis,” KEPCO E&C.

8. 1-037-N419-301, “Level I & II Sensitivity Analysis for SAMDA,” KEPCO E&C.

9. NUREG/CR-4551, Vol. 2, Rev. 1, Part 7, "Evaluation of Severe Accident Risks: Quantification of Major Input Parameters MACCS Input," U.S. Nuclear Regulatory Commission, December 1990.

10. U.S. Bureau of Labor, "Consumer Price Index – All Urban Consumers," Series Catalog: Series ID: CUUR0300SA0, 2011, http://data.bls.gov/pdq/SurveyOutputServlet?series_id=CUUR0300SA0,CUUS0300SA0.

11. NUREG/CR-6525, Rev. 1, "SECPOP00: Sector Population, Land Fraction, and Economic Estimation Program," U.S. Nuclear Regulatory Commission, August 2003.

12. U.S. Census Bureau, "Census 2000 Summary File 1, Census Population and Housing," DVD issued September 2001, V1-D00-S1AS-08-US1.

13. Statistical Information Staff, Population Division, U.S. Bureau of the Census, "County Population Estimates for July 1, 1998 and Population Change for April 1, 1990 to July 1, 1998 (includes revised April 1, 1990 Census Population Counts)," CO-98-002, Released to Internet, March 12, 1999 (in Appendix).

14. NUREG/CR-4551, Vol. 2, Rev. 1, Part 7, "Evaluation of Severe Accident Risks: Quantification of Major Input Parameters," U.S. Nuclear Regulatory Commission, December 1990.

15. U.S. Dept. of Agriculture, "1997 Census of Agriculture," National Agricultural Statistics Service.

16. NUREG/CR-3673, “Economic Risks of Nuclear Power Reactor Accidents,” SAND84-0178, U.S. Nuclear Regulatory Commission, April 1984.

17. Virginia State demographic projections are available through the internet site http://www.vawc.virginia.gov/gsipub/index.asp?docid=359 (under Demographics).

18. North Carolina State demographic projections are available through the internet site http://www.osbm.state.nc.us/ncosbm/facts_and_figures/socioeconomic_data/population_estimates.shtm

http://www.vawc.virginia.gov/gsipub/index.asp?docid=359


KEPCO & KHNP A41

Non-Proprietary

19. U.S. Dept. of Agriculture, "2007 Census of Agriculture," National Agricultural Statistics Service.


KEPCO & KHNP A42

Non-Proprietary

Attachment I. Rosette and Population Distribution

ROSETTES

SURRY – YEAR 2030

16.09 km (10 mile) POPULATION DISTRIBUTION

AND



KEPCO & KHNP A43

Non-Proprietary


POPULATION INSIDE ONE MILE N NNE NE ENE E ESE SE SSE 0 0 0 0 0 0 0 0 S SSW SW WSW W WNW NW NNW 0 0 0 0 0 0 0 0

POPULATION BY ANNULUS ANNULUS 0 TO 1 1 TO 2 2 TO 3 3 TO 4 4 TO 5 5 TO 10 TOTAL

POPULATION 0 40 65 607 6632 156,612 163,955

N

1 mi 2 mi 3 mi

4 mi 5 mi

10 mi

NNE

NE

ENE

S

E

ESE

SE

SSE

NNW

NW

WNW

W

WSW

SW

SSW

0 0 7

0 0

0 29 0 4

0 0

0 0

0 0 0

0

0

411

19,648 12,421

3,631

7,056

36,777

28,878

0

596 1,599

212

570

1,037

385

316

14,600

28,885

3,364

0

0

0

0

0

180 82

89

104

106

168

91

0

2,035

0

0

0

0

0

0

0 249

147

6

55

150

0

0

0

0 0

0

0

0

0 41

2 0 12

9

0

0 0

0


KEPCO & KHNP A44

Non-Proprietary


POPULATION BY ANNULUS ANNULUS 0 TO 10 10 TO 20 20 TO 30 30 TO 40 40 TO 50 TOTAL

POPULATION 163,955 362,649 393,631 914,347 952,374 2,786,956

N

10 mi 20 mi

30 mi 40 mi

50 mi

NNE

NE

ENE

S

E

ESE

SE

SSE

NNW

NW

WNW

W

WSW

SW

SSW

5,089 7,861

0

5,944

1,903

9,982

179,521

314,108

57,857

3,713

5,171

4,667 11,082

6,754

237,759

100,961

4,095 11,192

2,994

101

1,784

95,669

514,279

43,184 30,865

21,333

2,009

4,140

91,719

60,384

27,471

3,126

4,708 12,515

6,741

1,213

254

100,312

148,590 61,009

14,823 5,800

2,229

3,274

4,745

5,907

7,431

14,081

8,194 11,657 11,491

14,995

40,458

171,543 29,511

24,768 4,757 2,016

31,637 3,714

4,062

950

1,626 1,269


KEPCO & KHNP A45

Non-Proprietary

80.47 km (50 mile) SPATIAL LOCATION (SURRY SITE)


KEPCO & KHNP A46

Non-Proprietary

Attachment II. WINMACCS INPUT FILE LISTING FOR BASE CASE


KEPCO & KHNP A47

Non-Proprietary

AATMOS.INP *Taken From SAND97-0594_NUREG-CR-6613 Volume 1 (Edited Where Noted) *STC-09, STC-10 - ASSUMED RELEASE HEIGHT (CNTMT LEAKAGE AT 27.7 M) * * GENERAL DESCRIPTIVE TITLE DESCRIBING THIS "ATMOS" INPUT * BASE CASE DECK LAST Modified by SEP - Maracor 07/24/2013 RIATNAM1001 'IN1A.INP, APR1400-DC--Using Using stacked ST data, ATMOS input' ******************************************************************************** * GEOMETRY DATA BLOCK, LOADED BY INPGEO, STORED IN /GEOM/ * * NUMBER OF RADIAL SPATIAL ELEMENTS * GENUMRAD001 10 * * SURRY * GESPAEND001 1.61 3.22 4.83 6.44 8.05 GESPAEND002 16.09 32.18 48.27 64.37 80.47 * ******************************************************************************** * NUCLIDE DATA BLOCK, LOADED BY INPISO, STORED IN /ISOGRP/, /ISONAM/ * * Number of pseudo-stable nuclides (used to truncate the decay chains) * ISNUMSTB001 27 * * List of pseudo-stable nuclides * ISNAMSTB001 I-129 (daughter of Te-129 and Te-129m) ISNAMSTB002 Xe-131m (daughter of I-131) ISNAMSTB003 Xe-133m (daughter of I-133) ISNAMSTB004 Xe-135m (daughter of I-135) ISNAMSTB005 Cs-135 (daughter of Xe-135 and Xe-135m) ISNAMSTB006 Sm-147 (daughter of Pm-147) ISNAMSTB007 U-234 (daughter of Pu-238) ISNAMSTB008 U-235 (daughter of Pu-239) ISNAMSTB009 U-236 (daughter of Pu-240) ISNAMSTB010 U-237 (daughter of Pu-241) ISNAMSTB011 Np-237 (daughter of Am-241) ISNAMSTB012 Rb-87 (daughter of Kr-87) ISNAMSTB013 Ba-137m (daughter of Cs-137) ISNAMSTB014 Rb-88 (daughter of Kr-88) ISNAMSTB015 Y-91m (daughter of Sr-91) ISNAMSTB016 Zr-93 (daughter of Y-93) ISNAMSTB017 Nb-93m (daughter of Zr-93) ISNAMSTB018 Nb-95m (daughter of Zr-95) ISNAMSTB019 Nb-97 (daughter of Zr-97 and Nb-97m) ISNAMSTB020 Nb-97m (daughter of Zr-97) ISNAMSTB021 Tc-99 (daughter of Mo-99) ISNAMSTB022 Rh-103m (daughter of Ru-103) ISNAMSTB023 Rh-106 (daughter of Ru-106) ISNAMSTB024 Te-131 (daughter of Te-131m) ISNAMSTB025 Pr-144 (daughter of Ce-144 and Pr-144m) ISNAMSTB026 Pr-144m (daughter of Ce-144) ISNAMSTB027 Pm-147 (daughter of Nd-147) * * Number of radioactive nuclides to be considered * ISNUMISO001 60 *


KEPCO & KHNP A48

Non-Proprietary

* NUMBER OF NUCLIDE GROUPS * ISMAXGRP001 9 * * WET AND DRY DEPOSITION FLAGS FOR EACH NUCLIDE GROUP * * WETDEP DRYDEP * ISDEPFLA001 .FALSE. .FALSE. ISDEPFLA002 .TRUE. .TRUE. ISDEPFLA003 .TRUE. .TRUE. ISDEPFLA004 .TRUE. .TRUE. ISDEPFLA005 .TRUE. .TRUE. ISDEPFLA006 .TRUE. .TRUE. ISDEPFLA007 .TRUE. .TRUE. ISDEPFLA008 .TRUE. .TRUE. ISDEPFLA009 .TRUE. .TRUE. * * NUCLIDE GROUP DATA FOR 9 NUCLIDE GROUPS * * NUCNAM IGROUP * ISOTPGRP001 Co-58 6 ISOTPGRP002 Co-60 6 ISOTPGRP003 Kr-85 1 ISOTPGRP004 Kr-85m 1 ISOTPGRP005 Kr-87 1 ISOTPGRP006 Kr-88 1 ISOTPGRP007 Rb-86 3 ISOTPGRP008 Sr-89 5 ISOTPGRP009 Sr-90 5 ISOTPGRP010 Sr-91 5 ISOTPGRP011 Sr-92 5 ISOTPGRP012 Y-90 7 ISOTPGRP013 Y-91 7 ISOTPGRP014 Y-92 7 ISOTPGRP015 Y-93 7 ISOTPGRP016 Zr-95 7 ISOTPGRP017 Zr-97 7 ISOTPGRP018 Nb-95 7 ISOTPGRP019 Mo-99 6 ISOTPGRP020 Tc-99m 6 ISOTPGRP021 Ru-103 6 ISOTPGRP022 Ru-105 6 ISOTPGRP023 Ru-106 6 ISOTPGRP024 Rh-105 6 ISOTPGRP025 Sb-127 4 ISOTPGRP026 Sb-129 4 ISOTPGRP027 Te-127 4 ISOTPGRP028 Te-127m 4 ISOTPGRP029 Te-129 4 ISOTPGRP030 Te-129m 4 ISOTPGRP031 Te-131m 4 ISOTPGRP032 Te-132 4 ISOTPGRP033 I-131 2 ISOTPGRP034 I-132 2 ISOTPGRP035 I-133 2 ISOTPGRP036 I-134 2 ISOTPGRP037 I-135 2 ISOTPGRP038 Xe-133 1 ISOTPGRP039 Xe-135 1


KEPCO & KHNP A49

Non-Proprietary

ISOTPGRP040 Cs-134 3 ISOTPGRP041 Cs-136 3 ISOTPGRP042 Cs-137 3 ISOTPGRP043 Ba-139 9 ISOTPGRP044 Ba-140 9 ISOTPGRP045 La-140 7 ISOTPGRP046 La-141 7 ISOTPGRP047 La-142 7 ISOTPGRP048 Ce-141 8 ISOTPGRP049 Ce-143 8 ISOTPGRP050 Ce-144 8 ISOTPGRP051 Pr-143 7 ISOTPGRP052 Nd-147 7 ISOTPGRP053 Np-239 8 ISOTPGRP054 Pu-238 8 ISOTPGRP055 Pu-239 8 ISOTPGRP056 Pu-240 8 ISOTPGRP057 Pu-241 8 ISOTPGRP058 Am-241 7 ISOTPGRP059 Cm-242 7 ISOTPGRP060 Cm-244 7 ******************************************************************************* * WET DEPOSITION DATA BLOCK, LOADED BY INPWET, STORED IN /WETCON/ * * WASHOUT COEFFICIENT NUMBER ONE, LINEAR FACTOR * WDCWASH1001 9.5E-5 (JON HELTON AFTER JONES, 1986) * * WASHOUT COEFFICIENT NUMBER TWO, EXPONENTIAL FACTOR * WDCWASH2001 0.8 (JON HELTON AFTER JONES, 1986) ******************************************************************************** * DRY DEPOSITION DATA BLOCK, LOADED BY INPDRY, STORED IN /DRYCON/ * * NUMBER OF PARTICLE SIZE GROUPS * DDNPSGRP001 1 * * DEPOSITION VELOCITY OF EACH PARTICLE SIZE GROUP (M/S) * DDVDEPOS001 0.01 (VALUE SELECTED BY S. ACHARYA, NRC) ******************************************************************************** * DISPERSION PARAMETER DATA BLOCK, LOADED BY INPDIS, STORED IN /DISPY/, /DISPZ/ * * # of distances in plume-size tables--which can be used as an alternative to the power-law model: * (to utilize the power-law model, set NUM_DIST to zero or delete the following data card) * NUM_DIST001 50 * * A-stability Distance (m) Sigma-y (m) Sigma-z (m) A-STB/DIS01 1.000E+00 3.6580E-01 2.5000E-04 Tadmor/Gur (0.5-5 km) A-STB/DIS02 1.400E+00 4.9569E-01 5.1105E-04 Tadmor/Gur (0.5-5 km) A-STB/DIS03 2.000E+00 6.8408E-01 1.0905E-03 Tadmor/Gur (0.5-5 km) A-STB/DIS04 3.000E+00 9.8658E-01 2.5812E-03 Tadmor/Gur (0.5-5 km) A-STB/DIS05 4.000E+00 1.2793E+00 4.7568E-03 Tadmor/Gur (0.5-5 km) A-STB/DIS06 5.000E+00 1.5649E+00 7.6428E-03 Tadmor/Gur (0.5-5 km) A-STB/DIS07 6.000E+00 1.8450E+00 1.1259E-02 Tadmor/Gur (0.5-5 km) A-STB/DIS08 8.000E+00 2.3923E+00 2.0749E-02 Tadmor/Gur (0.5-5 km) A-STB/DIS09 1.000E+01 2.9265E+00 3.3338E-02 Tadmor/Gur (0.5-5 km) A-STB/DIS10 1.000E+02 2.3412E+01 4.4457E+00 Tadmor/Gur (0.5-5 km)


KEPCO & KHNP A50

Non-Proprietary

A-STB/DIS11 1.400E+02 3.1726E+01 9.0879E+00 Tadmor/Gur (0.5-5 km) A-STB/DIS12 2.000E+02 4.3783E+01 1.9392E+01 Tadmor/Gur (0.5-5 km) A-STB/DIS13 3.000E+02 6.3144E+01 4.5901E+01 Tadmor/Gur (0.5-5 km) A-STB/DIS14 4.000E+02 8.1877E+01 8.4590E+01 Tadmor/Gur (0.5-5 km) A-STB/DIS15 5.000E+02 1.0016E+02 1.3591E+02 Tadmor/Gur (0.5-5 km) A-STB/DIS16 6.000E+02 1.1808E+02 2.0022E+02 Tadmor/Gur (0.5-5 km) A-STB/DIS17 8.000E+02 1.5312E+02 3.6898E+02 Tadmor/Gur (0.5-5 km) A-STB/DIS18 1.000E+03 1.8730E+02 5.9284E+02 Tadmor/Gur (0.5-5 km) A-STB/DIS19 1.400E+03 2.5381E+02 1.2119E+03 Tadmor/Gur (0.5-5 km) A-STB/DIS20 2.000E+03 3.5027E+02 2.5860E+03 Tadmor/Gur (0.5-5 km) A-STB/DIS21 3.000E+03 5.0516E+02 6.1210E+03 Tadmor/Gur (0.5-5 km) A-STB/DIS22 4.000E+03 6.5503E+02 1.1280E+04 Tadmor/Gur (0.5-5 km) A-STB/DIS23 5.000E+03 8.0128E+02 1.8124E+04 Tadmor/Gur (0.5-5 km) A-STB/DIS24 6.000E+03 9.4470E+02 2.6700E+04 Tadmor/Gur (0.5-5 km) A-STB/DIS25 8.000E+03 1.2250E+03 4.9205E+04 Tadmor/Gur (0.5-5 km) A-STB/DIS26 1.000E+04 1.4985E+03 7.9057E+04 Tadmor/Gur (0.5-5 km) A-STB/DIS27 1.400E+04 2.0305E+03 1.6161E+05 Tadmor/Gur (0.5-5 km) A-STB/DIS28 2.000E+04 2.8022E+03 3.4485E+05 Tadmor/Gur (0.5-5 km) A-STB/DIS29 3.000E+04 4.0414E+03 8.1625E+05 Tadmor/Gur (0.5-5 km) A-STB/DIS30 4.000E+04 5.2404E+03 1.5042E+06 Tadmor/Gur (0.5-5 km) A-STB/DIS31 5.000E+04 6.4104E+03 2.4169E+06 Tadmor/Gur (0.5-5 km) A-STB/DIS32 6.000E+04 7.5577E+03 3.5605E+06 Tadmor/Gur (0.5-5 km) A-STB/DIS33 8.000E+04 9.8000E+03 6.5615E+06 Tadmor/Gur (0.5-5 km) A-STB/DIS34 1.000E+05 1.1988E+04 1.0542E+07 Tadmor/Gur (0.5-5 km) A-STB/DIS35 1.400E+05 1.6245E+04 2.1551E+07 Tadmor/Gur (0.5-5 km) A-STB/DIS36 2.000E+05 2.2418E+04 4.5986E+07 Tadmor/Gur (0.5-5 km) A-STB/DIS37 3.000E+05 3.2332E+04 1.0885E+08 Tadmor/Gur (0.5-5 km) A-STB/DIS38 4.000E+05 4.1924E+04 2.0059E+08 Tadmor/Gur (0.5-5 km) A-STB/DIS39 5.000E+05 5.1284E+04 3.2229E+08 Tadmor/Gur (0.5-5 km) A-STB/DIS40 6.000E+05 6.0463E+04 4.7480E+08 Tadmor/Gur (0.5-5 km) A-STB/DIS41 8.000E+05 7.8401E+04 8.7500E+08 Tadmor/Gur (0.5-5 km) A-STB/DIS42 1.000E+06 9.5906E+04 1.4059E+09 Tadmor/Gur (0.5-5 km) A-STB/DIS43 1.400E+06 1.2996E+05 2.8738E+09 Tadmor/Gur (0.5-5 km) A-STB/DIS44 2.000E+06 1.7935E+05 6.1324E+09 Tadmor/Gur (0.5-5 km) A-STB/DIS45 3.000E+06 2.5866E+05 1.4515E+10 Tadmor/Gur (0.5-5 km) A-STB/DIS46 4.000E+06 3.3540E+05 2.6750E+10 Tadmor/Gur (0.5-5 km) A-STB/DIS47 5.000E+06 4.1028E+05 4.2979E+10 Tadmor/Gur (0.5-5 km) A-STB/DIS48 6.000E+06 4.8372E+05 6.3316E+10 Tadmor/Gur (0.5-5 km) A-STB/DIS49 8.000E+06 6.2723E+05 1.1668E+11 Tadmor/Gur (0.5-5 km) A-STB/DIS50 1.000E+07 7.6726E+05 1.8747E+11 Tadmor/Gur (0.5-5 km) * * B-stability Distance (m) Sigma-y (m) Sigma-z (m) B-STB/DIS01 1.000E+00 2.7510E-01 1.9000E-03 Tadmor/Gur (0.5-5 km) B-STB/DIS02 1.400E+00 3.7279E-01 3.2574E-03 Tadmor/Gur (0.5-5 km) B-STB/DIS03 2.000E+00 5.1446E-01 5.7681E-03 Tadmor/Gur (0.5-5 km) B-STB/DIS04 3.000E+00 7.4196E-01 1.1045E-02 Tadmor/Gur (0.5-5 km) B-STB/DIS05 4.000E+00 9.6208E-01 1.7511E-02 Tadmor/Gur (0.5-5 km) B-STB/DIS06 5.000E+00 1.1769E+00 2.5036E-02 Tadmor/Gur (0.5-5 km) B-STB/DIS07 6.000E+00 1.3875E+00 3.3530E-02 Tadmor/Gur (0.5-5 km) B-STB/DIS08 8.000E+00 1.7992E+00 5.3161E-02 Tadmor/Gur (0.5-5 km) B-STB/DIS09 1.000E+01 2.2009E+00 7.6007E-02 Tadmor/Gur (0.5-5 km) B-STB/DIS10 1.000E+02 1.7607E+01 3.0406E+00 Tadmor/Gur (0.5-5 km) B-STB/DIS11 1.400E+02 2.3859E+01 5.2127E+00 Tadmor/Gur (0.5-5 km) B-STB/DIS12 2.000E+02 3.2927E+01 9.2307E+00 Tadmor/Gur (0.5-5 km) B-STB/DIS13 3.000E+02 4.7487E+01 1.7675E+01 Tadmor/Gur (0.5-5 km) B-STB/DIS14 4.000E+02 6.1576E+01 2.8023E+01 Tadmor/Gur (0.5-5 km) B-STB/DIS15 5.000E+02 7.5323E+01 4.0066E+01 Tadmor/Gur (0.5-5 km) B-STB/DIS16 6.000E+02 8.8805E+01 5.3657E+01 Tadmor/Gur (0.5-5 km) B-STB/DIS17 8.000E+02 1.1515E+02 8.5073E+01 Tadmor/Gur (0.5-5 km) B-STB/DIS18 1.000E+03 1.4086E+02 1.2163E+02 Tadmor/Gur (0.5-5 km) B-STB/DIS19 1.400E+03 1.9088E+02 2.0853E+02 Tadmor/Gur (0.5-5 km)


KEPCO & KHNP A51

Non-Proprietary

B-STB/DIS20 2.000E+03 2.6342E+02 3.6926E+02 Tadmor/Gur (0.5-5 km) B-STB/DIS21 3.000E+03 3.7991E+02 7.0705E+02 Tadmor/Gur (0.5-5 km) B-STB/DIS22 4.000E+03 4.9262E+02 1.1210E+03 Tadmor/Gur (0.5-5 km) B-STB/DIS23 5.000E+03 6.0260E+02 1.6028E+03 Tadmor/Gur (0.5-5 km) B-STB/DIS24 6.000E+03 7.1046E+02 2.1465E+03 Tadmor/Gur (0.5-5 km) B-STB/DIS25 8.000E+03 9.2124E+02 3.4033E+03 Tadmor/Gur (0.5-5 km) B-STB/DIS26 1.000E+04 1.1269E+03 4.8658E+03 Tadmor/Gur (0.5-5 km) B-STB/DIS27 1.400E+04 1.5271E+03 8.3419E+03 Tadmor/Gur (0.5-5 km) B-STB/DIS28 2.000E+04 2.1074E+03 1.4772E+04 Tadmor/Gur (0.5-5 km) B-STB/DIS29 3.000E+04 3.0393E+03 2.8285E+04 Tadmor/Gur (0.5-5 km) B-STB/DIS30 4.000E+04 3.9410E+03 4.4845E+04 Tadmor/Gur (0.5-5 km) B-STB/DIS31 5.000E+04 4.8209E+03 6.4117E+04 Tadmor/Gur (0.5-5 km) B-STB/DIS32 6.000E+04 5.6838E+03 8.5868E+04 Tadmor/Gur (0.5-5 km) B-STB/DIS33 8.000E+04 7.3701E+03 1.3614E+05 Tadmor/Gur (0.5-5 km) B-STB/DIS34 1.000E+05 9.0155E+03 1.9465E+05 Tadmor/Gur (0.5-5 km) B-STB/DIS35 1.400E+05 1.2217E+04 3.3371E+05 Tadmor/Gur (0.5-5 km) B-STB/DIS36 2.000E+05 1.6860E+04 5.9093E+05 Tadmor/Gur (0.5-5 km) B-STB/DIS37 3.000E+05 2.4315E+04 1.1315E+06 Tadmor/Gur (0.5-5 km) B-STB/DIS38 4.000E+05 3.1529E+04 1.7940E+06 Tadmor/Gur (0.5-5 km) B-STB/DIS39 5.000E+05 3.8568E+04 2.5649E+06 Tadmor/Gur (0.5-5 km) B-STB/DIS40 6.000E+05 4.5471E+04 3.4350E+06 Tadmor/Gur (0.5-5 km) B-STB/DIS41 8.000E+05 5.8962E+04 5.4462E+06 Tadmor/Gur (0.5-5 km) B-STB/DIS42 1.000E+06 7.2126E+04 7.7867E+06 Tadmor/Gur (0.5-5 km) B-STB/DIS43 1.400E+06 9.7737E+04 1.3350E+07 Tadmor/Gur (0.5-5 km) B-STB/DIS44 2.000E+06 1.3488E+05 2.3639E+07 Tadmor/Gur (0.5-5 km) B-STB/DIS45 3.000E+06 1.9453E+05 4.5264E+07 Tadmor/Gur (0.5-5 km) B-STB/DIS46 4.000E+06 2.5224E+05 7.1765E+07 Tadmor/Gur (0.5-5 km) B-STB/DIS47 5.000E+06 3.0855E+05 1.0261E+08 Tadmor/Gur (0.5-5 km) B-STB/DIS48 6.000E+06 3.6378E+05 1.3741E+08 Tadmor/Gur (0.5-5 km) B-STB/DIS49 8.000E+06 4.7171E+05 2.1787E+08 Tadmor/Gur (0.5-5 km) B-STB/DIS50 1.000E+07 5.7702E+05 3.1150E+08 Tadmor/Gur (0.5-5 km) * * C-stability Distance (m) Sigma-y (m) Sigma-z (m) C-STB/DIS01 1.000E+00 2.0890E-01 2.0000E-01 Tadmor/Gur (0.5-5 km) C-STB/DIS02 1.400E+00 2.8308E-01 2.6660E-01 Tadmor/Gur (0.5-5 km) C-STB/DIS03 2.000E+00 3.9066E-01 3.6158E-01 Tadmor/Gur (0.5-5 km) C-STB/DIS04 3.000E+00 5.6341E-01 5.1125E-01 Tadmor/Gur (0.5-5 km) C-STB/DIS05 4.000E+00 7.3056E-01 6.5369E-01 Tadmor/Gur (0.5-5 km) C-STB/DIS06 5.000E+00 8.9367E-01 7.9097E-01 Tadmor/Gur (0.5-5 km) C-STB/DIS07 6.000E+00 1.0536E+00 9.2428E-01 Tadmor/Gur (0.5-5 km) C-STB/DIS08 8.000E+00 1.3662E+00 1.1818E+00 Tadmor/Gur (0.5-5 km) C-STB/DIS09 1.000E+01 1.6712E+00 1.4300E+00 Tadmor/Gur (0.5-5 km) C-STB/DIS10 1.000E+02 1.3370E+01 1.0224E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS11 1.400E+02 1.8118E+01 1.3629E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS12 2.000E+02 2.5003E+01 1.8484E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS13 3.000E+02 3.6060E+01 2.6136E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS14 4.000E+02 4.6758E+01 3.3417E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS15 5.000E+02 5.7198E+01 4.0435E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS16 6.000E+02 6.7435E+01 4.7250E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS17 8.000E+02 8.7442E+01 6.0414E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS18 1.000E+03 1.0696E+02 7.3102E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS19 1.400E+03 1.4495E+02 9.7447E+01 Tadmor/Gur (0.5-5 km) C-STB/DIS20 2.000E+03 2.0003E+02 1.3216E+02 Tadmor/Gur (0.5-5 km) C-STB/DIS21 3.000E+03 2.8849E+02 1.8687E+02 Tadmor/Gur (0.5-5 km) C-STB/DIS22 4.000E+03 3.7408E+02 2.3893E+02 Tadmor/Gur (0.5-5 km) C-STB/DIS23 5.000E+03 4.5759E+02 2.8911E+02 Tadmor/Gur (0.5-5 km) C-STB/DIS24 6.000E+03 5.3949E+02 3.3784E+02 Tadmor/Gur (0.5-5 km) C-STB/DIS25 8.000E+03 6.9955E+02 4.3196E+02 Tadmor/Gur (0.5-5 km) C-STB/DIS26 1.000E+04 8.5573E+02 5.2267E+02 Tadmor/Gur (0.5-5 km) C-STB/DIS27 1.400E+04 1.1596E+03 6.9673E+02 Tadmor/Gur (0.5-5 km) C-STB/DIS28 2.000E+04 1.6003E+03 9.4493E+02 Tadmor/Gur (0.5-5 km)


KEPCO & KHNP A52

Non-Proprietary

C-STB/DIS29 3.000E+04 2.3080E+03 1.3361E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS30 4.000E+04 2.9927E+03 1.7083E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS31 5.000E+04 3.6608E+03 2.0671E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS32 6.000E+04 4.3161E+03 2.4155E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS33 8.000E+04 5.5965E+03 3.0884E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS34 1.000E+05 6.8460E+03 3.7371E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS35 1.400E+05 9.2770E+03 4.9816E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS36 2.000E+05 1.2803E+04 6.7562E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS37 3.000E+05 1.8464E+04 9.5529E+03 Tadmor/Gur (0.5-5 km) C-STB/DIS38 4.000E+05 2.3942E+04 1.2214E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS39 5.000E+05 2.9287E+04 1.4780E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS40 6.000E+05 3.4529E+04 1.7270E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS41 8.000E+05 4.4773E+04 2.2082E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS42 1.000E+06 5.4769E+04 2.6720E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS43 1.400E+06 7.4218E+04 3.5618E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS44 2.000E+06 1.0242E+05 4.8306E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS45 3.000E+06 1.4772E+05 6.8302E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS46 4.000E+06 1.9154E+05 8.7331E+04 Tadmor/Gur (0.5-5 km) C-STB/DIS47 5.000E+06 2.3430E+05 1.0567E+05 Tadmor/Gur (0.5-5 km) C-STB/DIS48 6.000E+06 2.7624E+05 1.2348E+05 Tadmor/Gur (0.5-5 km) C-STB/DIS49 8.000E+06 3.5819E+05 1.5788E+05 Tadmor/Gur (0.5-5 km) C-STB/DIS50 1.000E+07 4.3817E+05 1.9104E+05 Tadmor/Gur (0.5-5 km) * * D-stability Distance (m) Sigma-y (m) Sigma-z (m) D-STB/DIS01 1.000E+00 1.4740E-01 3.0000E-01 Tadmor/Gur (0.5-5 km) D-STB/DIS02 1.400E+00 1.9974E-01 3.7374E-01 Tadmor/Gur (0.5-5 km) D-STB/DIS03 2.000E+00 2.7565E-01 4.7180E-01 Tadmor/Gur (0.5-5 km) D-STB/DIS04 3.000E+00 3.9754E-01 6.1486E-01 Tadmor/Gur (0.5-5 km) D-STB/DIS05 4.000E+00 5.1549E-01 7.4197E-01 Tadmor/Gur (0.5-5 km) D-STB/DIS06 5.000E+00 6.3058E-01 8.5840E-01 Tadmor/Gur (0.5-5 km) D-STB/DIS07 6.000E+00 7.4344E-01 9.6696E-01 Tadmor/Gur (0.5-5 km) D-STB/DIS08 8.000E+00 9.6400E-01 1.1669E+00 Tadmor/Gur (0.5-5 km) D-STB/DIS09 1.000E+01 1.1792E+00 1.3500E+00 Tadmor/Gur (0.5-5 km) D-STB/DIS10 1.000E+02 9.4340E+00 6.0746E+00 Tadmor/Gur (0.5-5 km) D-STB/DIS11 1.400E+02 1.2784E+01 7.5678E+00 Tadmor/Gur (0.5-5 km) D-STB/DIS12 2.000E+02 1.7642E+01 9.5533E+00 Tadmor/Gur (0.5-5 km) D-STB/DIS13 3.000E+02 2.5444E+01 1.2450E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS14 4.000E+02 3.2993E+01 1.5024E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS15 5.000E+02 4.0359E+01 1.7382E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS16 6.000E+02 4.7582E+01 1.9580E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS17 8.000E+02 6.1699E+01 2.3628E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS18 1.000E+03 7.5474E+01 2.7335E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS19 1.400E+03 1.0227E+02 3.4054E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS20 2.000E+03 1.4114E+02 4.2989E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS21 3.000E+03 2.0356E+02 5.6024E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS22 4.000E+03 2.6395E+02 6.7606E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS23 5.000E+03 3.2288E+02 7.8215E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS24 6.000E+03 3.8067E+02 8.8107E+01 Tadmor/Gur (0.5-5 km) D-STB/DIS25 8.000E+03 4.9360E+02 1.0632E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS26 1.000E+04 6.0381E+02 1.2300E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS27 1.400E+04 8.1821E+02 1.5324E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS28 2.000E+04 1.1292E+03 1.9344E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS29 3.000E+04 1.6285E+03 2.5210E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS30 4.000E+04 2.1116E+03 3.0422E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS31 5.000E+04 2.5831E+03 3.5196E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS32 6.000E+04 3.0454E+03 3.9647E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS33 8.000E+04 3.9489E+03 4.7843E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS34 1.000E+05 4.8306E+03 5.5350E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS35 1.400E+05 6.5458E+03 6.8956E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS36 2.000E+05 9.0335E+03 8.7047E+02 Tadmor/Gur (0.5-5 km) D-STB/DIS37 3.000E+05 1.3028E+04 1.1344E+03 Tadmor/Gur (0.5-5 km)


KEPCO & KHNP A53

Non-Proprietary

D-STB/DIS38 4.000E+05 1.6893E+04 1.3689E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS39 5.000E+05 2.0665E+04 1.5838E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS40 6.000E+05 2.4364E+04 1.7841E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS41 8.000E+05 3.1592E+04 2.1529E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS42 1.000E+06 3.8645E+04 2.4907E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS43 1.400E+06 5.2368E+04 3.1029E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS44 2.000E+06 7.2270E+04 3.9170E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS45 3.000E+06 1.0423E+05 5.1048E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS46 4.000E+06 1.3515E+05 6.1601E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS47 5.000E+06 1.6532E+05 7.1267E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS48 6.000E+06 1.9492E+05 8.0280E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS49 8.000E+06 2.5274E+05 9.6877E+03 Tadmor/Gur (0.5-5 km) D-STB/DIS50 1.000E+07 3.0917E+05 1.1208E+04 Tadmor/Gur (0.5-5 km) * * E-stability Distance (m) Sigma-y (m) Sigma-z (m) E-STB/DIS01 1.000E+00 1.0460E-01 4.0000E-01 Tadmor/Gur (0.5-5 km) E-STB/DIS02 1.400E+00 1.4174E-01 4.8983E-01 Tadmor/Gur (0.5-5 km) E-STB/DIS03 2.000E+00 1.9561E-01 6.0717E-01 Tadmor/Gur (0.5-5 km) E-STB/DIS04 3.000E+00 2.8211E-01 7.7506E-01 Tadmor/Gur (0.5-5 km) E-STB/DIS05 4.000E+00 3.6581E-01 9.2164E-01 Tadmor/Gur (0.5-5 km) E-STB/DIS06 5.000E+00 4.4748E-01 1.0542E+00 Tadmor/Gur (0.5-5 km) E-STB/DIS07 6.000E+00 5.2757E-01 1.1765E+00 Tadmor/Gur (0.5-5 km) E-STB/DIS08 8.000E+00 6.8409E-01 1.3990E+00 Tadmor/Gur (0.5-5 km) E-STB/DIS09 1.000E+01 8.3682E-01 1.6001E+00 Tadmor/Gur (0.5-5 km) E-STB/DIS10 1.000E+02 6.6947E+00 6.4012E+00 Tadmor/Gur (0.5-5 km) E-STB/DIS11 1.400E+02 9.0719E+00 7.8387E+00 Tadmor/Gur (0.5-5 km) E-STB/DIS12 2.000E+02 1.2520E+01 9.7165E+00 Tadmor/Gur (0.5-5 km) E-STB/DIS13 3.000E+02 1.8056E+01 1.2403E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS14 4.000E+02 2.3413E+01 1.4749E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS15 5.000E+02 2.8640E+01 1.6870E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS16 6.000E+02 3.3766E+01 1.8827E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS17 8.000E+02 4.3784E+01 2.2388E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS18 1.000E+03 5.3559E+01 2.5607E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS19 1.400E+03 7.2577E+01 3.1358E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS20 2.000E+03 1.0016E+02 3.8870E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS21 3.000E+03 1.4445E+02 4.9617E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS22 4.000E+03 1.8731E+02 5.9001E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS23 5.000E+03 2.2912E+02 6.7485E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS24 6.000E+03 2.7013E+02 7.5316E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS25 8.000E+03 3.5028E+02 8.9559E+01 Tadmor/Gur (0.5-5 km) E-STB/DIS26 1.000E+04 4.2848E+02 1.0244E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS27 1.400E+04 5.8063E+02 1.2544E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS28 2.000E+04 8.0129E+02 1.5549E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS29 3.000E+04 1.1556E+03 1.9849E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS30 4.000E+04 1.4985E+03 2.3603E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS31 5.000E+04 1.8330E+03 2.6997E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS32 6.000E+04 2.1611E+03 3.0129E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS33 8.000E+04 2.8023E+03 3.5827E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS34 1.000E+05 3.4279E+03 4.0979E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS35 1.400E+05 4.6452E+03 5.0182E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS36 2.000E+05 6.4105E+03 6.2203E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS37 3.000E+05 9.2453E+03 7.9403E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS38 4.000E+05 1.1988E+04 9.4419E+02 Tadmor/Gur (0.5-5 km) E-STB/DIS39 5.000E+05 1.4665E+04 1.0800E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS40 6.000E+05 1.7289E+04 1.2053E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS41 8.000E+05 2.2419E+04 1.4332E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS42 1.000E+06 2.7424E+04 1.6393E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS43 1.400E+06 3.7162E+04 2.0074E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS44 2.000E+06 5.1285E+04 2.4883E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS45 3.000E+06 7.3964E+04 3.1764E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS46 4.000E+06 9.5907E+04 3.7771E+03 Tadmor/Gur (0.5-5 km)


KEPCO & KHNP A54

Non-Proprietary

E-STB/DIS47 5.000E+06 1.1732E+05 4.3203E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS48 6.000E+06 1.3832E+05 4.8215E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS49 8.000E+06 1.7935E+05 5.7334E+03 Tadmor/Gur (0.5-5 km) E-STB/DIS50 1.000E+07 2.1940E+05 6.5578E+03 Tadmor/Gur (0.5-5 km) * * F-stability Distance (m) Sigma-y (m) Sigma-z (m) F-STB/DIS01 1.000E+00 7.2200E-02 2.0000E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS02 1.400E+00 9.7838E-02 2.4491E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS03 2.000E+00 1.3502E-01 3.0356E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS04 3.000E+00 1.9473E-01 3.8749E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS05 4.000E+00 2.5250E-01 4.6076E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS06 5.000E+00 3.0887E-01 5.2700E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS07 6.000E+00 3.6415E-01 5.8814E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS08 8.000E+00 4.7219E-01 6.9934E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS09 1.000E+01 5.7761E-01 7.9989E-01 Tadmor/Gur (0.5-5 km) F-STB/DIS10 1.000E+02 4.6210E+00 3.1991E+00 Tadmor/Gur (0.5-5 km) F-STB/DIS11 1.400E+02 6.2619E+00 3.9174E+00 Tadmor/Gur (0.5-5 km) F-STB/DIS12 2.000E+02 8.6417E+00 4.8557E+00 Tadmor/Gur (0.5-5 km) F-STB/DIS13 3.000E+02 1.2463E+01 6.1981E+00 Tadmor/Gur (0.5-5 km) F-STB/DIS14 4.000E+02 1.6161E+01 7.3700E+00 Tadmor/Gur (0.5-5 km) F-STB/DIS15 5.000E+02 1.9769E+01 8.4297E+00 Tadmor/Gur (0.5-5 km) F-STB/DIS16 6.000E+02 2.3307E+01 9.4076E+00 Tadmor/Gur (0.5-5 km) F-STB/DIS17 8.000E+02 3.0222E+01 1.1186E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS18 1.000E+03 3.6969E+01 1.2795E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS19 1.400E+03 5.0096E+01 1.5667E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS20 2.000E+03 6.9135E+01 1.9420E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS21 3.000E+03 9.9707E+01 2.4789E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS22 4.000E+03 1.2929E+02 2.9476E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS23 5.000E+03 1.5815E+02 3.3714E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS24 6.000E+03 1.8646E+02 3.7625E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS25 8.000E+03 2.4178E+02 4.4739E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS26 1.000E+04 2.9576E+02 5.1172E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS27 1.400E+04 4.0078E+02 6.2661E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS28 2.000E+04 5.5309E+02 7.7669E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS29 3.000E+04 7.9767E+02 9.9142E+01 Tadmor/Gur (0.5-5 km) F-STB/DIS30 4.000E+04 1.0343E+03 1.1789E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS31 5.000E+04 1.2653E+03 1.3484E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS32 6.000E+04 1.4917E+03 1.5048E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS33 8.000E+04 1.9343E+03 1.7893E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS34 1.000E+05 2.3661E+03 2.0466E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS35 1.400E+05 3.2063E+03 2.5061E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS36 2.000E+05 4.4248E+03 3.1063E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS37 3.000E+05 6.3815E+03 3.9651E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS38 4.000E+05 8.2748E+03 4.7149E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS39 5.000E+05 1.0122E+04 5.3927E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS40 6.000E+05 1.1934E+04 6.0183E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS41 8.000E+05 1.5475E+04 7.1563E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS42 1.000E+06 1.8929E+04 8.1852E+02 Tadmor/Gur (0.5-5 km) F-STB/DIS43 1.400E+06 2.5651E+04 1.0023E+03 Tadmor/Gur (0.5-5 km) F-STB/DIS44 2.000E+06 3.5400E+04 1.2424E+03 Tadmor/Gur (0.5-5 km) F-STB/DIS45 3.000E+06 5.1053E+04 1.5858E+03 Tadmor/Gur (0.5-5 km) F-STB/DIS46 4.000E+06 6.6200E+04 1.8857E+03 Tadmor/Gur (0.5-5 km) F-STB/DIS47 5.000E+06 8.0980E+04 2.1568E+03 Tadmor/Gur (0.5-5 km) F-STB/DIS48 6.000E+06 9.5474E+04 2.4070E+03 Tadmor/Gur (0.5-5 km) F-STB/DIS49 8.000E+06 1.2380E+05 2.8621E+03 Tadmor/Gur (0.5-5 km) F-STB/DIS50 1.000E+07 1.5144E+05 3.2736E+03 Tadmor/Gur (0.5-5 km) * * LINEAR SCALING FACTOR FOR SIGMA-Y FUNCTION, NORMALLY 1 * DPYSCALE001 1. *


KEPCO & KHNP A55

Non-Proprietary

* LINEAR SCALING FACTOR FOR SIGMA-Z FUNCTION, * NORMALLY USED FOR SURFACE ROUGHNESS LENGTH CORRECTION. * (Z1 / Z0) ** 0.2, FROM CRAC2 WE HAVE (10 CM / 3 CM) ** 0.2 = 1.27 * DPZSCALE001 1.27 ****************************************************************************** * * EXPANSION FACTOR DATA BLOCK, LOADED BY INPEXP, STORED IN /EXPAND/ * * TIME BASE FOR EXPANSION FACTOR (SECONDS) * PMTIMBAS001 600. (10 MINUTES) * * BREAK POINT FOR FORMULA CHANGE (SECONDS) * PMBRKPNT001 3600. (1 HOUR) * * EXPONENTIAL EXPANSION FACTOR NUMBER 1 * PMXPFAC1001 0.2 * * EXPONENTIAL EXPANSION FACTOR NUMBER 2 * PMXPFAC2001 0.25 ******************************************************************************** * PLUME RISE DATA BLOCK, LOADED BY INPLRS, STORED IN /PLUMRS/ * * SCALING FACTOR FOR THE CRITICAL WIND SPEED FOR ENTRAINMENT OF A BOUYANT PLUME * (USED BY FUNCTION CAUGHT) * PRSCLCRW001 1. * * SCALING FACTOR FOR THE A-D STABILITY PLUME RISE FORMULA * (USED BY FUNCTION PLMRIS) * PRSCLADP001 1. * * SCALING FACTOR FOR THE E-F STABILITY PLUME RISE FORMULA * (USED BY FUNCTION PLMRIS) * PRSCLEFP001 1. ******************************************************************************** * RELEASE DATA BLOCK, LOADED BY INPREL, STORED IN /ATNAM2/, /MULREL/ * RDATNAM2001 'SECOND DRAFT 1150, WORST CASE SOURCE TERM FOR EARLY FATALITIES' * * TIME AFTER ACCIDENT INITIATION WHEN THE ACCIDENT REACHES GENERAL EMERGENCY * CONDITIONS (AS DEFINED IN NUREG-0654), OR WHEN PLANT PERSONNEL CAN RELIABLY * PREDICT THAT GENERAL EMERGENCY CONDITIONS WILL BE ATTAINED * RDOALARM001 126000. 126000. 126000. 126000. * * NUMBER OF PLUME SEGMENTS THAT ARE RELEASED * RDNUMREL001 4 * * SELECTION OF RISK DOMINANT PLUME * RDMAXRIS001 1 * * REFERENCE TIME FOR DISPERSION AND RADIOACTIVE DECAY *


KEPCO & KHNP A56

Non-Proprietary

RDREFTIM001 0.00 0.50 0.50 0.50 * * HEAT CONTENT OF THE RELEASE SEGMENTS (W) * A VALUE SPECIFIED FOR EACH OF THE RELEASE SEGMENTS * RDPLHEAT001 0.0 0.0 0.0 0.0 * * HEIGHT OF THE PLUME SEGMENTS AT RELEASE (M) * A VALUE SPECIFIED FOR EACH OF THE RELEASE SEGMENTS * RDPLHITE001 18. 18. 18. 18. * * DURATION OF THE PLUME SEGMENTS (S) * A VALUE SPECIFIED FOR EACH OF THE RELEASE SEGMENTS * RDPLUDUR001 9360. 18360. 24480. 86400. * * TIME OF RELEASE FOR EACH PLUME (S AFTER SCRAM) * A VALUE SPECIFIED FOR EACH OF THE RELEASE SEGMENTS * RDPDELAY001 126000. 135360. 153720. 178200. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * * PARTICLE SIZE DISTRIBUTION OF EACH NUCLIDE GROUP * YOU MUST SPECIFY A COLUMN OF DATA FOR EACH OF THE PARTICLE SIZE GROUPS * RDPSDIST001 1. RDPSDIST002 1. RDPSDIST003 1. RDPSDIST004 1. RDPSDIST005 1. RDPSDIST006 1. RDPSDIST007 1. RDPSDIST008 1. RDPSDIST009 1. * * 3412 MWTH PWR CORE INVENTORY, END-OF-CYCLE * SUPPLIED BY D.E. BENNETT, 5/14/86 * * NUCNAM CORINV (Bq) * RDCORINV001 Co-58 3.223E+16 RDCORINV002 Co-60 2.465E+16 RDCORINV003 Kr-85 2.475E+16 RDCORINV004 Kr-85m 1.159E+18 RDCORINV005 Kr-87 2.118E+18 RDCORINV006 Kr-88 2.864E+18 RDCORINV007 Rb-86 1.888E+15 RDCORINV008 Sr-89 3.590E+18


KEPCO & KHNP A57

Non-Proprietary

RDCORINV009 Sr-90 1.938E+17 RDCORINV010 Sr-91 4.616E+18 RDCORINV011 Sr-92 4.803E+18 RDCORINV012 Y-90 2.079E+17 RDCORINV013 Y-91 4.374E+18 RDCORINV014 Y-92 4.821E+18 RDCORINV015 Y-93 5.454E+18 RDCORINV016 Zr-95 5.526E+18 RDCORINV017 Zr-97 5.759E+18 RDCORINV018 Nb-95 5.224E+18 RDCORINV019 Mo-99 6.098E+18 RDCORINV020 Tc-99m 5.263E+18 RDCORINV021 Ru-103 4.542E+18 RDCORINV022 Ru-105 2.954E+18 RDCORINV023 Ru-106 1.032E+18 RDCORINV024 Rh-105 2.046E+18 RDCORINV025 Sb-127 2.787E+17 RDCORINV026 Sb-129 9.872E+17 RDCORINV027 Te-127 2.692E+17 RDCORINV028 Te-127m 3.564E+16 RDCORINV029 Te-129 9.267E+17 RDCORINV030 Te-129m 2.443E+17 RDCORINV031 Te-131m 4.680E+17 RDCORINV032 Te-132 4.658E+18 RDCORINV033 I-131 3.206E+18 RDCORINV034 I-132 4.725E+18 RDCORINV035 I-133 6.779E+18 RDCORINV036 I-134 7.440E+18 RDCORINV037 I-135 6.392E+18 RDCORINV038 Xe-133 6.782E+18 RDCORINV039 Xe-135 1.273E+18 RDCORINV040 Cs-134 4.324E+17 RDCORINV041 Cs-136 1.316E+17 RDCORINV042 Cs-137 2.417E+17 RDCORINV043 Ba-139 6.282E+18 RDCORINV044 Ba-140 6.216E+18 RDCORINV045 La-140 6.352E+18 RDCORINV046 La-141 5.826E+18 RDCORINV047 La-142 5.616E+18 RDCORINV048 Ce-141 5.651E+18 RDCORINV049 Ce-143 5.494E+18 RDCORINV050 Ce-144 3.405E+18 RDCORINV051 Pr-143 5.395E+18 RDCORINV052 Nd-147 2.412E+18 RDCORINV053 Np-239 6.464E+19 RDCORINV054 Pu-238 3.664E+15 RDCORINV055 Pu-239 8.263E+14 RDCORINV056 Pu-240 1.042E+15 RDCORINV057 Pu-241 1.755E+17 RDCORINV058 Am-241 1.159E+14 RDCORINV059 Cm-242 4.436E+16 RDCORINV060 Cm-244 2.596E+15 * * SCALING FACTOR TO ADJUST THE CORE INVENTORY FOR POWER LEVEL * RDCORSCA001 1.172 * 4000/3412 ratio of MWth for APR1400 to the four loop shown in the example * * RDAPLFRC001 PARENT (apply rel fracs the same as prior versions) *


KEPCO & KHNP A58

Non-Proprietary

* SOURCE TERM NUMBER (STC 1) FROM MAAP CASE XXXX Run XXXX * RELEASE FRACTIONS FOR ISOTOPE GROUPS IN RELEASE 1 OF 21 (STC 1) * * ISOTOPE GROUPS: * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 8.2E-1 1.1E-1 6.1E-2 6.9E-2 1.4E-3 3.6E-2 8.3E-5 7.3E-4 8.1E-3 RDRELFRC002 2.4E-2 4.4E-2 9.9E-3 1.6E-2 2.4E-3 1.6E-3 6.5E-5 1.9E-4 8.1E-3 RDRELFRC003 6.1E-2 1.1E-2 3.0E-3 2.4E-3 5.3E-3 1.7E-5 4.2E-4 4.4E-4 5.4E-3 RDRELFRC004 2.8E-2 2.9E-1 1.2E-1 1.0E-1 4.1E-3 4.0E-3 6.3E-3 6.3E-3 5.1E-3 ******************************************************************************** * OUTPUT CONTROL DATA BLOCK, LOADED BY INPOPT, STORED IN /STOPME/, /ATMOPT/ * * FLAG TO INDICATE THAT THIS IS THE LAST PROGRAM IN THE SERIES TO BE RUN * OCENDAT1001 .FALSE. (SET THIS VALUE TO .TRUE. TO SKIP EARLY AND CHRONC) * OCIDEBUG001 0 * * NAME OF THE NUCLIDE TO BE LISTED ON THE DISPERSION LISTINGS * OCNUCOUT001 Cs-137 * * NUM0 TYPE0NUMBER 2 * * INDREL INDRAD TYPE0OUT001 1 9 TYPE0OUT002 1 10 XCCDF ******************************************************************************** * METEOROLOGICAL SAMPLING DATA BLOCK * * METEOROLOGICAL SAMPLING OPTION CODE: * * METCOD = 1, USER SPECIFIED DAY AND HOUR IN THE YEAR (FROM MET FILE), * 2, WEATHER CATEGORY BIN SAMPLING, * 3, 120 HOURS OF WEATHER SPECIFIED ON THE ATMOS USER INPUT FILE, * 4, CONSTANT MET (BOUNDARY WEATHER USED FROM THE START), * 5, STRATIFIED RANDOM SAMPLES FOR EACH DAY OF THE YEAR. * M1METCOD001 2 * * LAST SPATIAL INTERVAL FOR MEASURED WEATHER * M2LIMSPA001 10 * * BOUNDARY WEATHER MIXING LAYER HEIGHT * M2BNDMXH001 1000. (METERS) * * BOUNDARY WEATHER STABILITY CLASS INDEX * M2IBDSTB001 4 (D-STABILITY) * * BOUNDARY WEATHER RAIN RATE * M2BNDRAN001 5. (MM/HR) * * BOUNDARY WEATHER WIND SPEED *


KEPCO & KHNP A59

Non-Proprietary

M2BNDWND001 5. (M/S) * * NUMBER OF RAIN DISTANCE INTERVALS FOR BINNING * M4NRNINT001 5 * * ENDPOINTS OF THE RAIN DISTANCE INTERVALS (KILOMETERS) * * NOTE: THESE MUST BE CHOSEN TO MATCH THE SPATIAL ENDPOINT DISTANCES * SPECIFIED FOR THE ARRAY SPAEND (10 % ERROR IS ALLOWED). * M4RNDSTS001 3.22 6.44 8.05 16.09 32.19 * * NUMBER OF RAIN INTENSITIY BREAKPOINTS * M4NRINTN001 3 * * RAIN INTENSITY BREAKPOINTS FOR WEATHER BINNING (MILLIMETERS PER HOUR) * M4RNRATE001 2. 4. 6. * * NUMBER OF SAMPLES PER BIN * M4NSMPLS001 4 (THIS NUMBER SHOULD BE SET TO 4 FOR RISK ASSESSMENT) * * INITIAL SEED FOR RANDOM NUMBER GENERATOR * M4IRSEED001 79 ********************************************************************** . AEARLY.INP * GENERAL DESCRIPTIVE TITLE DESCRIBING THIS "EARLY" INPUT FILE * BASE CASE using EZDLTSHL = 7200 seconds and 100% Evacuation * Last Modified by S. Phillippi (Maracor) 7/30/13 MIEANAM1001 'AEARLY.INP, Sample Problem A of NUREG/CR-4691, Vol. 1, EARLY input' DCF_FILE001 'DOSDATA.INP' (DCF file of MACCS 1.5.11.1) * * ORGNAM ORGFLG * MIORGDEF001 'A-SKIN' .TRUE. MIORGDEF002 'A-RED MARR' .TRUE. MIORGDEF003 'A-LUNGS' .TRUE. MIORGDEF004 'A-THYROIDH' .TRUE. MIORGDEF005 'A-STOMACH' .TRUE. MIORGDEF006 'A-LOWER LI' .FALSE. (does not contribute to early fatalities) MIORGDEF007 'L-EDEWBODY' .TRUE. MIORGDEF008 'L-RED MARR' .TRUE. MIORGDEF009 'L-BONE SUR' .TRUE. MIORGDEF010 'L-BREAST' .TRUE. MIORGDEF011 'L-LUNGS' .TRUE. MIORGDEF012 'L-THYROID' .TRUE. MIORGDEF013 'L-LOWER LI' .TRUE. MIORGDEF014 'L-BLAD WAL' .TRUE. MIORGDEF015 'L-LIVER' .FALSE. MIORGDEF016 'L-THYROIDH' .TRUE. * * FLAG TO INDICATE THAT THIS IS THE LAST PROGRAM IN THE SERIES TO BE RUN * MIENDAT2001 .FALSE. (SET THIS VALUE TO .TRUE. TO SKIP CHRONC)


KEPCO & KHNP A60

Non-Proprietary

* * DISPERSION MODEL OPTION CODE: 1 * STRAIGHT LINE * 2 * WIND-SHIFT WITH ROTATION * 3 * WIND-SHIFT WITHOUT ROTATION * MIIPLUME001 2 * * NUMBER OF FINE GRID SUBDIVISIONS USED BY THE MODEL * MINUMFIN001 7 (3, 5 OR 7 ALLOWED) * * LEVEL OF DEBUG OUTPUT REQUIRED, NORMAL RUNS SHOULD SPECIFY ZERO * MIIPRINT001 0 * * LOGICAL FLAG SIGNIFYING THAT THE BREAKDOWN OF RISK BY WEATHER CATEGORY * BIN ARE TO BE PRESENTED TO SHOW THEIR RELATIVE CONTRIBUTION TO THE MEAN * * RISBIN * MIRISCAT001 .FALSE. * * FLAG INDICATING IF WIND-ROSES FROM ATMOS ARE TO BE OVERRIDDEN * MIOVRRID001 .FALSE. (USE THE WIND ROSE CALCULATED FOR EACH WEATHER BIN) ******************************************************************************** * POPULATION DISTRIBUTION DATA BLOCK, LOADED BY INPOPU, STORED IN /POPDAT/ * PDPOPFLG001 FILE * *PDPOPFLG001 UNIFORM *PDIBEGIN001 1 (SPATIAL INTERVAL AT WHICH POPULATION BEGINS) *PDPOPDEN001 50. (POPULATION DENSITY (PEOPLE PER SQUARE KILOMETER)) ******************************************************************************** * SHIELDING AND EXPOSURE FACTORS, LOADED BY INDFAC, STORED IN /EADFAC/ * * THREE VALUES OF EACH PROTECTION FACTOR ARE SUPPLIED, * ONE FOR EACH TYPE OF ACTIVTY: * * ACTIVITY TYPE: * 1 - EVACUEES WHILE MOVING * 2 - NORMAL ACTIVITY IN SHELTERING AND EVACUATION ZONE * 3 - SHELTERED ACTIVITY * * CLOUD SHIELDING FACTOR * * SITE GG PB SEQ SUR ZION * SHELTERING 0.7 0.5 0.65 0.6 0.5 * * EVACUEES NORMAL SHELTER * SECSFACT001 1. 0.75 0.6 * SURRY SHELTERING VALUE * * PROTECTION FACTOR FOR INHALATION * SEPROTIN001 1. 0.41 0.33 * VALUES FOR NORMAL ACTIVITY AND * SHELTERING SELECTED BY NRC STAFF * * BREATHING RATE (CUBIC METERS PER SECOND) * SEBRRATE001 2.66E-4 2.66E-4 2.66E-4


KEPCO & KHNP A61

Non-Proprietary

* * SKIN PROTECTION FACTOR * SESKPFAC001 1.0 0.41 0.33 * VALUES FOR NORMAL ACTIVITY AND * SHELTERING SELECTED BY NRC STAFF * * GROUND SHIELDING FACTOR * * SITE GG PB SEQ SUR ZION * SHELTERING 0.25 0.1 0.2 0.2 0.1 * SEGSHFAC001 0.5 0.33 0.2 * VALUE FOR NORMAL ACTIVITY SELECTED BY * NRC STAFF * * RESUSPENSION INHALATION MODEL CONCENTRATION COEFFICIENT (/METER) * * RESCON = 1.E-4 IS APPROPRIATE FOR MECHANICAL RESUSPENSION BY VEHICLES. * RESHAF = 2.11 DAYS CAUSES 1.E-4 TO DECAY IN ONE WEEK TO 1.E-5, THE VALUE * OF RESCON USED IN THE FIRST TERM OF THE LONG-TERM RESUSPENSION EQUATION * USED IN CHRONC. * SERESCON001 1.E-4 (RESUSPENSION IS TURNED ON) * * RESUSPENSION CONCENTRATION COEFFICIENT HALF-LIFE (SEC) * SERESHAF001 1.82E5 (2.11 DAYS) ******************************************************************************** * EVACUATION ZONE DATA BLOCK, LOADED BY EVNETW, STORED IN /NETWOR/, /EOPTIO/ * * SPECIFIC DESCRIPTION OF THE EMERGENCY RESPONSE SCENARIO BEING USED * EZEANAM2001 'EVACUATION WITHIN 10 MILES, RELOCATION MODELS APPLY ELSEWHERE' * * THE TYPE OF WEIGHTING TO BE APPLIED TO THE EMERGENCY RESPONSE SCENARIOS * YOU MUST SUPPLY A VALUE OF 'TIME' OR 'PEOPLE' * EZWTNAME001 'PEOPLE' * * WEIGHTING FRACTION APPLICABLE TO THIS SCENARIO * EZWTFRAC001 1.00 * * LAST RING IN THE MOVEMENT ZONE * EZLASMOV001 7 (EVACUEES DISAPPEAR AFTER TRAVELING TO 20 MILES) * * Flag defining the time at which evacuees "enter" the destination element * *TRAVELPOINT 'CENTERPOINT' (new option implemented at MACCS2 v. 1.11f) TRAVELPOINT 'BOUNDARY' (functionality derived from MACCS circa 1984) * * RADIAL EVACUATION SPEED (M/S) * EZESPEED001 1.8 1.8 1.8 (SURRY) EZEVATYP001 'RADIAL' EZDURBEG001 86400.0 EZDURMID001 0.0 EZREFPNT001 'ALARM' EZNUMEVA001 6 EZDLTSHL001 7200. 7200. 7200. 7200. 7200. 7200. *EZDLTSHL002 7200. 7200. 7200. 7200. 7200. 7200.


KEPCO & KHNP A62

Non-Proprietary

EZDLTEVA001 0. 0. 0. 0. 0. 0. *EZDLTEVA002 0. 0. 0. 0. 0. 0. *********************************************************************** * SHELTER AND RELOCATION ZONE DATA BLOCK, LOADED BY INPEMR, * STORED IN /INPSRZ/, /RELOCA/ * * DURATION OF THE EMERGENCY PHASE (SECONDS FROM PLUME ARRIVAL) * SRENDEMP001 604800. (ONE WEEK) * * CRITICAL ORGAN FOR RELOCATION DECISIONS * SRCRIORG001 'L-EDEWBODY' * * HOT SPOT RELOCATION TIME (SECONDS FROM PLUME ARRIVAL) * SRTIMHOT001 43200. (ONE-HALF DAY) * * NORMAL RELOCATION TIME (SECONDS FROM PLUME ARRIVAL) * SRTIMNRM001 86400. (ONE DAY) * * HOT SPOT RELOCATION DOSE CRITERION THRESHOLD (SIEVERTS) * SRDOSHOT001 0.5 (50 REM DOSE TO WHOLE BODY IN 1 WEEK TRIGGERS RELOCATION) * * NORMAL RELOCATION DOSE CRITERION THRESHOLD (SIEVERTS) * SRDOSNRM001 0.25 (25 REM DOSE TO WHOLE BODY IN 1 WEEK TRIGGERS RELOCATION) ******************************************************************************** * EARLY FATALITY MODEL PARAMETERS, LOADED BY INEFAT, STORED IN /EFATAL/ * * NUMBER OF EARLY FATALITY EFFECTS * EFNUMEFA001 2 * * ORGNAM EFFACA EFFACB EFFTHR * EFATAGRP001 'A-RED MARR' 3.8 5.0 1.5 EFATAGRP002 'A-LUNGS' 10.0 7.0 5.0 ******************************************************************************** * EARLY INJURY MODEL PARAMETERS, LOADED BY INEINJ, STORED IN /EINJUR/ * * NUMBER OF EARLY INJURY EFFECTS * EINUMEIN001 7 * * EINAME ORGNAM EISUSC EITHRE EIFACA EIFACB * EINJUGRP001 'PRODROMAL VOMIT' 'A-STOMACH' 1. .5 2. 3. EINJUGRP002 'DIARRHEA' 'A-STOMACH' 1. 1. 3. 2.5 EINJUGRP003 'PNEUMONITIS' 'A-LUNGS' 1. 5. 10. 7. EINJUGRP004 'SKIN ERYTHEMA' 'A-SKIN' 1. 3. 6. 5. EINJUGRP005 'TRANSEPIDERMAL' 'A-SKIN' 1. 10. 20. 5. EINJUGRP006 'THYROIDITIS' 'A-THYROIDH' 1. 40. 240. 2. EINJUGRP007 'HYPOTHYROIDISM' 'A-THYROIDH' 1. 2. 60. 1.3 ******************************************************************************** * ACUTE EXPOSURE CANCER PARAMETERS, LOADED BY INACAN STORED IN /ACANCR/. * * NUMBER OF ACUTE EXPOSURE CANCER EFFECTS *


KEPCO & KHNP A63

Non-Proprietary

LCNUMACA001 7 * * THRESHOLD DOSE FOR APPLYING THE DOSE DEPENDENT REDUCTION FACTOR * LCDDTHRE001 0.2 (LOWEST DOSE FOR WHICH DDREFA WILL BE APPLIED) * * DOSE THRESHOLD FOR LINEAR DOSE RESPONSE (Sv) * LCACTHRE001 0.0 (LINEAR-QUADRATIC MODEL IS NOT BEING USED) * * ACNAME ORGNAM ACSUSC DOSEFA DOSEFB CFRISK CIRISK DDREFA * LCANCERS001 'LEUKEMIA' 'L-RED MARR' 1.0 1.0 0.0 9.70E-3 0.0 2.0 LCANCERS002 'BONE' 'L-BONE SUR' 1.0 1.0 0.0 9.00E-4 0.0 2.0 LCANCERS003 'BREAST' 'L-BREAST' 1.0 1.0 0.0 5.40E-3 1.7E-2 1.0 LCANCERS004 'LUNG' 'L-LUNGS' 1.0 1.0 0.0 1.55E-2 0.0 2.0 LCANCERS005 'THYROID' 'L-THYROIDH' 1.0 1.0 0.0 7.20E-4 7.2E-3 1.0 LCANCERS006 'GI' 'L-LOWER LI' 1.0 1.0 0.0 3.36E-2 0.0 2.0 LCANCERS007 'OTHER' 'L-EDEWBODY' 1.0 1.0 0.0 2.76E-2 0.0 2.0 ******************************************************************************** * RESULT 1 OPTIONS BLOCK, LOADED BY INOUT1, STORED IN /INOUT1/ * TOTAL NUMBER OF A GIVEN EFFECT (LATENT CANCER, EARLY DEATH, EARLY INJURY) * * NUMBER OF DESIRED RESULTS OF THIS TYPE * TYPE1NUMBER 27 * TYPE1OUT001 'ERL FAT/TOTAL' 1 6 NOCCDF (0 TO 10 MILES) TYPE1OUT002 'ERL INJ/PRODROMAL VOMIT' 1 6 NOCCDF TYPE1OUT003 'ERL INJ/DIARRHEA' 1 6 TYPE1OUT004 'ERL INJ/PNEUMONITIS' 1 6 TYPE1OUT005 'ERL INJ/THYROIDITIS' 1 6 TYPE1OUT006 'ERL INJ/HYPOTHYROIDISM' 1 6 TYPE1OUT007 'ERL INJ/SKIN ERYTHEMA' 1 6 TYPE1OUT008 'ERL INJ/TRANSEPIDERMAL' 1 6 TYPE1OUT009 'CAN FAT/TOTAL' 1 6 NOCCDF TYPE1OUT010 'CAN FAT/LUNG' 1 6 TYPE1OUT011 'CAN FAT/THYROID' 1 6 TYPE1OUT012 'CAN FAT/BREAST' 1 6 TYPE1OUT013 'CAN FAT/GI' 1 6 TYPE1OUT014 'CAN FAT/LEUKEMIA' 1 6 TYPE1OUT015 'CAN FAT/BONE' 1 6 TYPE1OUT016 'CAN FAT/OTHER' 1 6 TYPE1OUT017 'CAN INJ/THYROID' 1 6 TYPE1OUT018 'CAN INJ/BREAST' 1 6 TYPE1OUT019 'CAN FAT/TOTAL' 1 10 CCDF (0 TO 50 MILES) TYPE1OUT020 'ERL FAT/TOTAL' 1 10 TYPE1OUT021 'ERL INJ/PRODROMAL VOMIT' 1 10 TYPE1OUT022 'ERL INJ/DIARRHEA' 1 10 TYPE1OUT023 'ERL INJ/PNEUMONITIS' 1 10 TYPE1OUT024 'ERL INJ/THYROIDITIS' 1 10 TYPE1OUT025 'ERL INJ/HYPOTHYROIDISM' 1 10 TYPE1OUT026 'ERL INJ/SKIN ERYTHEMA' 1 10 TYPE1OUT027 'ERL INJ/TRANSEPIDERMAL' 1 10 ******************************************************************************* * RESULT 2 OPTIONS BLOCK, LOADED BY INOUT2, STORED IN /INOUT2/ * FURTHEST DISTANCE AT WHICH A GIVEN RISK OF EARLY DEATH IS EXCEEDED. * * NUMBER OF DESIRED RESULTS OF THIS TYPE * TYPE2NUMBER 1


KEPCO & KHNP A64

Non-Proprietary

* * FATALITY RISK THRESHOLD * TYPE2OUT001 0. ******************************************************************************** * RESULT 3 OPTIONS BLOCK, LOADED BY INOUT3, STORED IN /INOUT3/ * NUMBER OF PEOPLE WHOSE DOSE TO A GIVEN ORGAN EXCEEDS A GIVEN THRESHOLD. * * NUMBER OF DESIRED RESULTS OF THIS TYPE * TYPE3NUMBER 3 * * ORGAN NAME DOSE THRESHOLD (Sv) * TYPE3OUT001 'A-RED MARR' 1.5 TYPE3OUT002 'A-LUNGS' 5.0 TYPE3OUT003 'L-EDEWBODY' 0.05 ******************************************************************************** * RESULT 4 OPTIONS BLOCK, LOADED BY INOUT4, STORED IN /INOUT4/ * 360 DEGREE AVERAGE RISK OF A GIVEN EFFECT AT A GIVEN DISTANCE. * * POSSIBLE TYPES OF EFFECTS ARE: * * 'ERL FAT/TOTAL' * 'ERL INJ/INJURY NAME' * 'CAN FAT/CANCER NAME' * 'CAN FAT/TOTAL' * * NUMBER OF DESIRED RESULTS OF THIS TYPE * TYPE4NUMBER 5 * * RADIAL INDEX TYPE OF EFFECT * TYPE4OUT001 1 'ERL FAT/TOTAL' TYPE4OUT002 2 'ERL FAT/TOTAL' TYPE4OUT003 3 'ERL FAT/TOTAL' TYPE4OUT004 4 'ERL FAT/TOTAL' TYPE4OUT005 5 'ERL FAT/TOTAL' ******************************************************************************** * RESULT 5 OPTIONS BLOCK, LOADED BY INOUT5, STORED IN /INOUT5/ * * TOTAL POPULATION DOSE TO A GIVEN ORGAN BETWEEN TWO DISTANCES. * * NUMBER OF DESIRED RESULTS OF THIS TYPE * TYPE5NUMBER 2 * * ORGAN I1DIS5 I2DIS5 * TYPE5OUT001 'L-EDEWBODY' 1 6 (0-10 MILES) TYPE5OUT002 'L-EDEWBODY' 1 10 NOCCDF (0-50 MILES) *TYPE5OUT003 'L-EDEWBODY' 1 26 NOCCDF (0-1000 MILES) ******************************************************************************** * RESULT 6 OPTIONS BLOCK, LOADED BY INOUT6, STORED IN /INOUT6/ * * CENTERLINE DOSE TO AN ORGAN VS DIST BY PATHWAY, PATHWAY NAMES ARE AS FOLLOWS: * * PATHWAY NAME: * 'CLD' - CLOUDSHINE * 'GRD' - GROUNDSHINE


KEPCO & KHNP A65

Non-Proprietary

* 'INH ACU' - "ACUTE DOSE EQUIVALENT" FROM DIRECT INHALATION OF THE CLOUD * 'INH LIF' - "LIFETIME DOSE COMMITMENT" FROM DIRECT INHALATION OF THE CLOUD * 'RES ACU' - "ACUTE DOSE EQUIVALENT" FROM RESUSPENSION INHALATION * 'RES LIF' - "LIFETIME DOSE COMMITMENT" FROM RESUSPENSION INHALATION * 'TOT ACU' - "ACUTE DOSE EQUIVALENT" FROM ALL PATHWAYS * 'TOT LIF' - "LIFETIME DOSE COMMITMENT" FROM ALL PATHWAYS * * NUMBER OF DESIRED RESULTS OF THIS TYPE * TYPE6NUMBER 0 * * ORGNAM PATHNM I1DIS6 I2DIS6 * *TYPE6OUT001 'A-RED MARR' 'TOT ACU' 1 19 (0-50 MILES) *TYPE6OUT002 'A-LUNGS' 'TOT ACU' 1 19 (0-50 MILES) *TYPE6OUT003 'L-EDEWBODY' 'TOT LIF' 1 26 (0-1000 MILES) ******************************************************************************** * RESULT 7 OPTIONS BLOCK, LOADED BY INOUT7, STORED IN /INOUT7/ * * CENTERLINE RISK OF A GIVEN EFFECT VS DISTANCE * * NUMBER OF DESIRED RESULTS OF THIS TYPE * TYPE7NUMBER 0 * * NAME I1DIS7 I2DIS7 * *TYPE7OUT001 'ERL FAT/TOTAL' 1 19 (0-50 MILES) *TYPE7OUT002 'CAN FAT/TOTAL' 1 26 (0-1000 MILES) ******************************************************************************** * RESULT 8 OPTIONS BLOCK, LOADED BY INOUT8, STORED IN /INOUT8/ * * POPULATION WEIGHTED FATALITY RISK BETWEEN 2 DISTANCES * * NUMBER OF DESIRED RESULTS OF THIS TYPE * TYPE8NUMBER 2 * * NAME I1DIS8 I2DIS8 * TYPE8OUT001 'ERL FAT/TOTAL' 1 5 NOCCDF (0-EXCL ZONE + 1 MI) TYPE8OUT002 'CAN FAT/TOTAL' 1 6 NOCCDF (0-10 MILES) ******************************************************************************** * RESULT A OPTIONS BLOCK, LOADED BY INOUTA, STORED IN /INOUTA/ * * peak dose to a given organ * * NUMA TYPEANUMBER 1 * * ORGNAM I1DISA I2DISA TYPEAOUT001 'L-EDEWBODY' 1 10 . ACHRONC.INP * GENERAL DESCRIPTIVE TITLE DESCRIBING THIS "CHRONC" INPUT FILE -NUREG * BASE CASE Using revise Economic data CHEVACST = 54, CHRELCST = 54 * CHDLBCST = 68100, CHPOPCST = 10050, CHVALWF = 12137, CHVALWNF = 241883 * LAST MODIFIED by S Phillippi (Maracor) 7/30/13 CHCHNAME001 'ACHRONC.INP, Sample Problem A, "New" COMIDA2-Based Food Model'


KEPCO & KHNP A66

Non-Proprietary

******************************************************************************** * EMERGENCY RESPONSE COST DATA BLOCK * * DAILY COST FOR A PERSON WHO IS EVACUATED (DOLLARS/PERSON-DAY) * CHEVACST001 54.00 (INCLUDES FOOD AND HOUSING COSTS BUT NOT LOST INCOME) * * DAILY COST FOR A PERSON WHO IS RELOCATED (DOLLARS/PERSON-DAY) * CHRELCST001 54.00 (INCLUDES FOOD AND HOUSING COSTS BUT NOT LOST INCOME) ******************************************************************************** * LONG TERM PROTECTIVE ACTION DATA BLOCK * * Duration of the intermediate phase period--at version 1.11c TMIPND is no * longer processed. The new input variable DUR_INTPHAS is the period's * duration, not the time after plume arrival at which the period ends. * DUR_INTPHAS 0.0 (in seconds) (no intermediate phase) * * LONG-TERM PHASE DOSE PROJECTION PERIOD, THE DURATION OF THE EXPOSURE * PERIOD OVER WHICH THE LONG-TERM DOSE CRITERION IS EVALUATED (SECONDS) * CHTMPACT001 1.58E8 (5 YEARS) * * DOSE CRITERION FOR INTERMEDIATE PHASE RELOCATION (Sv) * CHDSCRTI001 1.0E5 (NO INTERMEDIATE PHASE RELOCATION) * * DOSE CRITERION FOR LONG-TERM PHASE RELOCATION (Sv) * CHDSCRLT001 0.04 * * CRITICAL ORGAN NAME FOR LONG-TERM ACTIONS * CHCRTOCR001 'L-EDEWBODY' * * Long Term Exposure Period Previously permanently set to: * one million years = 3.15 E13 seconds * MACCS2 allowable range is 3.15E7 to 1.E10 * CHEXPTIM001 1.E10 ******************************************************************************** * DECONTAMINATION PLAN DATA BLOCK * * NUMBER OF LEVELS OF DECONTAMINATION * CHLVLDEC001 2 * * DECONTAMINATION TIMES CORRESPONDING TO THE LVLDEC LEVELS OF DECONTAMINATION * (SECONDS) * CHTIMDEC001 5.184E6 1.0368E7 (60, 120 DAYS) * * DOSE REDUCTION FACTORS CORRESPONDING TO THE LVLDEC LEVELS OF DECONTAMINATION * CHDSRFCT001 3. 15. * * COST OF FARM DECONTAMINATION PER FARMLAND UNIT AREA (DOLLARS/HECTARE) * FOR THE VARIOUS LEVELS OF DECONTAMINATION * CHCDFRM0001 658.1 1463.


KEPCO & KHNP A67

Non-Proprietary

* * COST OF NONFARM DECONTAMINATION PER RESIDENT PERSON (DOLLARS/PERSON) * FOR THE VARIOUS LEVELS OF DECONTAMINATION * CHCDNFRM001 3510. 9360. * * FRACTION OF FARMLAND DECONTAMINATION COST DUE TO LABOR * FOR THE VARIOUS DECONTAMINATION LEVELS * CHFRFDL0001 .3 .35 * * FRACTION OF NON-FARM DECONTAMINATION COST DUE TO LABOR * FOR THE VARIOUS DECONTAMINATION LEVELS * CHFRNFDL001 .7 .5 * * FRACTION OF TIME WORKERS IN FARM AREAS SPEND IN CONTAMINATED AREAS * FOR THE VARIOUS DECONTAMINATION LEVELS * CHTFWKF0001 .10 .33 * * FRACTION OF TIME WORKERS IN NON-FARM AREAS SPEND IN CONTAMINATED AREAS * FOR THE VARIOUS DECONTAMINATION LEVELS * CHTFWKNF001 .33 .33 * * AVERAGE COST OF DECONTAMINATION LABOR (DOLLARS/MAN-YEAR) * CHDLBCST001 68100. ******************************************************************************** * INTERDICTION COST DATA BLOCK * * DEPRECIATION (DETERIORATION) RATE DURING INTERDICTION PERIOD (PER YEAR) * CHDPRATE001 .20 (VALUE OBTAINED FROM WASH-1400, APPENDIX 6) * * INVESTMENT INCOME RETURN (DISCOUNT RATE) DURING INTERDICTION PERIOD (PER YEAR) * THIS VALUE SHOULD BE DERIVED AS A REAL RETURN RATE ADJUSTED FOR INFLATION * CHDSRATE001 .12 (VALUE OBTAINED FROM WASH-1400, APPENDIX 6) * * POPULATION RELOCATION COST (DOLLARS/PERSON): * ALTERNATIVE HOUSING, MOVING COSTS, AND LOST INCOME FOR PEOPLE IN * AREAS WHICH REQUIRE DECONTAMINATION, INTERDICTION, OR CONDEMNATION * CHPOPCST001 10050. ******************************************************************************** * GROUNDSHINE WEATHERING DEFINITION DATA BLOCK * * NUMBER OF TERMS IN THE GROUNDSHINE WEATHERING RELATIONSHIP (EITHER 1 OR 2) * CHNGWTRM001 2 * * GROUNDSHINE WEATHERING COEFFICIENTS * CHGWCOEF001 0.5 0.5 (JON HELTON) * * HALF LIVES CORRESPONDING TO THE GROUNDSHINE WEATHERING COEFFICIENTS (S) * CHTGWHLF001 1.6E7 2.8E9 (JON HELTON) ********************************************************************************


KEPCO & KHNP A68

Non-Proprietary

* RESUSPENSION WEATHERING DEFINITION DATA BLOCK * * NUMBER OF TERMS IN THE RESUSPENSION WEATHERING RELATIONSHIP * CHNRWTRM001 3 * * RESUSPENSION CONCENTRATION COEFFICIENTS (/ METER) * RELATIONSHIP BETWEEN GROUND CONCENTRATION AND INSTANTANEOUS AIR CONC. * CHRWCOEF001 1.0E-5 1.0E-7 1.0E-9 (VALUES HERE SELECTED BY JON HELTON) * * HALF-LIVES CORRESPONDING TO THE RESUSPENSION CONCENTRATION COEFFICIENTS (S) * CHTRWHLF001 1.6E7 1.6E8 1.6E9 (6 MONTHS, 5 YEARS, 50 YEARS) ******************************************************************************** * SITE REGION DESCRIPTION DATA BLOCK * * FRACTION OF AREA THAT IS LAND IN THE REGION * CHFRACLD001 0.95 (ROUGH GUESS VALUE, SITE FILE OVERRIDES THIS VALUE) * * FRACTION OF LAND DEVOTED TO FARMING IN THE REGION * CHFRCFRM001 0.382 (VIRGINIA STATE VALUE, SITE FILE OVERRIDES THIS VALUE) * * AVERAGE VALUE OF ANNUAL FARM PRODUCTION IN THE REGION (DOLLARS/HECTARE) * (CASH RECEIPTS FROM FARMING PLUS VALUE OF HOME CONSUMPTION)/(LAND IN FARMS) * CHFRMPRD001 371.0 (VIRGINIA STATE VALUE, SITE FILE OVERRIDES THIS VALUE) * * FRACTION OF FARM PRODUCTION RESULTING FROM DAIRY PRODUCTION IN THE REGION * (VALUE OF MILK PRODUCED)/(CASH RECEIPTS FROM FARMING PLUS HOME CONSUMPTION) * CHDPFRCT001 0.198 (VIRGINIA STATE VALUE, SITE FILE OVERRIDES THIS VALUE) * * VALUE OF FARM WEALTH (DOLLARS/HECTARE) * (AVERAGE VALUE PER HECTARE OF FARM LAND AND BUILDINGS TO 100 MILES) * CHVALWF0001 12137. * SURRY * * FRACTION OF FARM WEALTH IN IMPROVEMENTS FOR THE REGION * CHFRFIM0001 0.25 * SURRY * * NON-FARM WEALTH, PROPERTY AND IMPROVEMENTS FOR THE REGION (DOLLARS/PERSON) * THE VALUE OF ALL RESIDENTIAL, BUSINESS, AND PUBLIC ASSETS WHICH WOULD BE * LOST IN THE EVENT OF PERMANENT INTERDICTION (CONDEMNATION) OF THE AREA * CHVALWNF001 241883. * SURRY * * FRACTION OF NON-FARM WEALTH IN IMPROVEMENTS FOR THE REGION * CHFRNFIM001 0.8 ***************************************************************************** CHFDPATH001 'NEW' * * name of the COMIDA2 binary output file * BIN_FILE001 'C:fgr13samp_a.BIN' (revised data file of WinMACCS 3.7) * * Dose limits triggering first year crop disposal of the separate


KEPCO & KHNP A69

Non-Proprietary

* milk and non-milk components of the diet, corresponding in purpose, * more or less, to the MACCS 1.5 input variables PSCMLK and PSCOTH * * For NUREG-1150 calculations, the maximum allowable ground concentrations for * production of milk and non-milk crops contaminated by an accident occurring * in the growing season were derived based on an assumed maximum allowable * dose of 5 rem effective or 15 rem thyroid, per the 1982 FDA guidance that's * reprinted in the 1992 EPA PAG Manual. For purposes of comparison against * the prior results, it is being assumed, for simplicity, that milk and * non-milk crops contribute equally to the first year dose. Thus, the 5 rem * effective dose limit used in NUREG-1150 is equally split between milk and * non-milk crops, with 2.5 rem allowed for each. Similarly, the 15 rem * thyroid limit is split into 7.5 and 7.5 rem for the milk and non-milk * portions of the diet. * * effective thyroid (doses in sieverts) DOSEMILK001 0.025 0.075 DOSEOTHR001 0.025 0.075 * * Annual dose limits for the subsequent year's (i.e., after the first year) * interdiction of BOTH the milk and non-milk (combined) components of the diet * * Note: the long-term food critera, GCMAXR, used for NUREG-1150 wre based on * an ingestion dose integrated from zero to infinity. It is not possible to * translate those parameter values into corresponding annual dose limits, as is * required by the COMIDA2-based food model. The "total" dose limits used in * NUREG-1150 for "root uptake", 0.5 rem effective and 1.5 rem thyroid, are used * here as annual dose limits for interdiction of food production in years the * years subsequent to the accident. * * effective thyroid (doses in sieverts) DOSELONG001 0.005 0.015 * * NUMBER OF NUCLIDES IN THE WATER INGESTION PATHWAY MODEL * CHNUMWPI001 4 * * TABLE OF NUCLIDE DEFINITIONS IN THE WATER INGESTION PATHWAY MODEL * * IF A SITE DATA FILE IS DEFINED, THE DATA DEFINING THE WATERSHED INGESTION * FACTOR IS SUPERSEDED BY THE CORRESPONDING DATA IN THE SITE DATA FILE * * INITIAL ANNUAL INGESTION FACTOR * WATER WASHOFF WASHOFF ((Bq INGESTED)/ * NUCLIDE FRACTION RATE (Bq IN WATER)) * * NAMWPI WSHFRI WSHRTA WINGF CHWTRISO001 Sr-89 0.01 0.004 5.0E-6 CHWTRISO002 Sr-90 0.01 0.004 5.0E-6 CHWTRISO003 Cs-134 0.005 0.001 5.0E-6 CHWTRISO004 Cs-137 0.005 0.001 5.0E-6 ******************************************************************************** * SPECIAL OPTIONS DATA BLOCK * * DETAILED PRINT OPTION CONTROL SWITCHES, LOOK AT THE CODE BEFORE TURNING ON!! * KSWDSC * CHKSWTCH001 0 ******************************************************************************** * DEFINE THE TYPE 9 RESULTS *


KEPCO & KHNP A70

Non-Proprietary

* LONG-TERM POPULATION DOSE IN A GIVEN REGION BROKEN DOWN BY THE 12 PATHWAYS * * NUMBER OF RESULTS OF THIS TYPE THAT ARE BEING REQUESTED * FOR EACH RESULT YOU REQUEST, THE CODE WILL PRODUCE A SET OF 12 * TYPE9NUMBER 1 (UP TO 10 ALLOWED) * * ORGNAM INNER OUTER * TYPE9OUT001 'L-EDEWBODY' 1 10 (0-50 MILES) *TYPE9OUT002 'L-EDEWBODY' 1 19 (0-50 MILES) ******************************************************************************** * ECONOMIC COST RESULTS IN A REGION BROKEN DOWN BY 12 TYPES OF COSTS * * NUMBER OF RESULTS OF THIS TYPE THAT ARE BEING REQUESTED * FOR EACH RESULT YOU REQUEST, THE CODE WILL PRODUCE A SET OF 12 * TYP10NUMBER 1 (UP TO 10 ALLOWED) * * INNER OUTER * TYP10OUT001 1 10 (0-50 MILES) *TYP10OUT002 1 19 (0-50 MILES) ******************************************************************************** * DEFINE A FLAG THAT CONTROLS THE PRODUCTION OF THE ACTION DISTANCE RESULTS * * SPECIFYING A VALUE OF .TRUE. TURNS ON ALL 8 OF THE ACTION DISTANCE RESULTS, * A VALUE OF .FALSE. WILL ELIMINATE THE ACTION DISTANCE RESULTS FROM THE OUTPUT. * TYP11FLAG11 .TRUE. ******************************************************************************** * IMPACTED AREA/POPULATION RESULTS IN A REGION BROKEN DOWN BY 6 TYPES OF IMPACTS * * NUMBER OF RESULTS OF THIS TYPE THAT ARE BEING REQUESTED * FOR EACH RESULT YOU REQUEST, THE CODE WILL PRODUCE A SET OF 8 * TYP12NUMBER 1 (UP TO 10 ALLOWED) * * INNER OUTER * TYP12OUT001 1 10 (0-50 MILES) *TYP12OUT002 1 19 (0-50 MILES) ******************************************************************************** * Maximal annual food ingestion dose to an individual, requested by IXOT13 * * This result is calculated after accounting for temporary or * permanent interdiction. It is only available for the "new" food model. * * NUMBER OF RESULTS OF THIS TYPE THAT ARE BEING REQUESTED * TYP13NUMBER 10 (UP TO 10 ALLOWED) * * IRAD13 is the radial spatial interval at which results are requested * * ORGN13 is the name of the organ for which results are requested * (allowable values for ORGN13 are 'EFFECTIVE' or 'THYROID') * * IRAD13 ORGN13 * TYP13OUT001 2 EFFECTIVE TYP13OUT002 4 EFFECTIVE


KEPCO & KHNP A71

Non-Proprietary

TYP13OUT003 6 EFFECTIVE TYP13OUT004 8 EFFECTIVE TYP13OUT005 10 EFFECTIVE TYP13OUT006 2 THYROID TYP13OUT007 4 THYROID TYP13OUT008 6 THYROID TYP13OUT009 8 THYROID TYP13OUT010 10 THYROID *TYP13OUT006 12 EFFECTIVE *TYP13OUT007 14 EFFECTIVE *TYP13OUT008 16 EFFECTIVE *TYP13OUT009 18 EFFECTIVE *TYP13OUT010 20 EFFECTIVE *TYP13OUT011 2 THYROID *TYP13OUT012 4 THYROID *TYP13OUT013 6 THYROID *TYP13OUT014 8 THYROID *TYP13OUT015 10 THYROID *TYP13OUT016 12 THYROID *TYP13OUT017 14 THYROID *TYP13OUT018 16 THYROID *TYP13OUT019 18 THYROID *TYP13OUT020 20 THYROID . metsurMxHt_60min.INP The metsurMxHt_60min.INP meteorological data input file is not included in this document. ASITE.INP SECPOP2000 Version: 3.13.1 MACCS2 Formatted Site: Surry Census: C:\Program Files\SecPOP_2000\Census\CENSUS00.DAT County: C:\Program Files\SecPOP_2000\Census\COUNTY1997RG_APR1400DC.DAT Lat: 37d 9'56'' Long: 76d41'54'' Population multiplier: 1.0000 Economic multiplier: 1.0000 Run Time: 1/14/2013 5:10:33 PM 10 SPATIAL INTERVALS 16 WIND DIRECTIONS 7 CROP CATEGORIES 4 WATER PATHWAY ISOTOPES 2 WATERSHEDS 99 ECONOMIC REGIONS SPATIAL DISTANCES KILOMETERS 1.6093 3.2187 4.8280 6.4374 8.0467 16.0935 32.1869 48.2804 64.3739 80.4674 POPULATION 0. 0. 0. 0. 411. 19648. 8194. 4708. 4095. 5089. 0. 0. 0. 0. 3364. 12421. 11657. 12515. 11192. 7861. 0. 7. 0. 0. 0. 3631. 11491. 6741. 2994. 0. 0. 0. 0. 0. 0. 7056. 14995. 1213. 101. 5944. 0. 0. 0. 0. 0. 36777. 40458. 254. 1784. 1903. 0. 0. 0. 0. 0. 28878. 171543. 100312. 95669. 100961. 0. 0. 0. 0. 0. 0. 29511. 148590. 514279. 237759. 0. 29. 41. 0. 180. 596. 24768. 61009.


KEPCO & KHNP A72

Non-Proprietary

43184. 6754. 0. 0. 2. 249. 82. 1599. 4757. 14823. 30865. 11082. 0. 4. 0. 147. 89. 212. 2016. 5800. 21333. 4667. 0. 0. 12. 6. 104. 570. 1269. 2229. 2009. 5171. 0. 0. 9. 55. 106. 1037. 1626. 3274. 4140. 3713. 0. 0. 0. 150. 168. 385. 950. 4745. 91719. 57857. 0. 0. 0. 0. 91. 316. 4062. 5907. 60384. 314108. 0. 0. 0. 0. 0. 14600. 3714. 7431. 27471. 179521. 0. 0. 0. 0. 2035. 28885. 31637. 14081. 3126. 9983. LAND FRACTION 0.00 0.00 0.00 0.80 0.80 0.76 0.65 0.91 0.79 0.86 0.00 0.90 0.00 0.00 0.80 0.56 0.75 0.72 0.59 0.62 0.90 0.90 0.00 0.00 0.00 0.56 0.75 0.41 0.47 0.00 0.00 0.90 0.00 0.00 0.80 0.61 0.64 0.34 0.26 0.26 0.90 0.90 0.00 0.00 0.57 0.58 0.41 0.20 0.26 0.26 0.90 0.00 0.00 0.00 0.00 0.57 0.47 0.41 0.51 0.50 0.00 0.00 0.00 0.00 0.00 0.57 0.67 0.72 0.73 0.76 0.90 0.90 0.90 0.00 0.87 0.87 0.87 0.93 0.95 0.90 0.90 0.00 0.90 0.90 0.90 0.88 0.87 0.90 0.93 0.97 0.00 0.90 0.90 0.90 0.90 0.90 0.90 0.94 0.96 0.99 0.00 0.00 0.90 0.90 0.90 0.90 0.92 1.00 1.00 1.00 0.00 0.00 0.90 0.90 0.90 0.90 0.91 0.99 0.99 0.99 0.00 0.00 0.00 0.90 0.90 0.90 0.90 0.94 0.95 0.99 0.00 0.00 0.00 0.00 0.90 0.90 0.91 0.92 0.95 0.97 0.00 0.00 0.00 0.80 0.80 0.80 0.87 0.92 0.95 0.99 0.90 0.00 0.00 0.80 0.80 0.82 0.79 0.94 0.96 0.96 REGION INDEX 1 2 2 3 4 5 6 7 8 9 1101111121314151617 1101111181920212211 1101111232425261127 1101111282930313233 1111111113435363738 1111111113940414243 1101011111144454647 1101048495051525354 1101055565758596061 1111162636465666768 1111111697071727374 1111111757677787980 1111111118182838485 1111186878889909192 1111193949596979899 WATERSHED INDEX 2 2 2 2 1 1 1 1 1 1 1 1 2 2 2 1 1 1 1 1 1 1 2 2 2 1 1 1 2 2 1 1 2 2 2 1 2 2 2 2 1 1 2 2 2 1 1 2 2 2 1 1 2 2 1 1 1 1 2 2 1 1 1 2 2 2 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1


KEPCO & KHNP A73

Non-Proprietary

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 2 2 2 1 1 1 1 1 1 1 2 2 2 2 2 1 1 1 1 1 2 2 2 1 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1 CROP SEASON AND SHARE 1 PASTURE 90. 270. 0.4100 2 STORED FORAGE 150. 240. 0.1300 3 GRAINS 150. 240. 0.2100 4 GRN LEAFY VEGETABLES 150. 240. 0.0020 5 OTHER FOOD CROPS 150. 240. 0.0040 6 LEGUMES AND SEEDS 150. 240. 0.1500 7 ROOTS AND TUBERS 150. 240. 0.0030 WATERSHED DEFINITION -- INITIAL AND ANNUAL WASHOFF AND INGESTION FACTORS 1 Sr-89 5.00E-06 0.0 2 Sr-90 5.00E-06 0.0 3 Cs-134 5.00E-06 0.0 4 Cs-137 5.00E-06 0.0 REGIONAL ECONOMIC DATA 1 EXCLUSION .230 .000 833.0 8158.0 204488.0 2 REGION_02 .000 .000 0.0 0.0 0.0 3 REGION_03 .060 .345 1214.0 20740.0 321908.0 4 REGION_04 .060 .345 1214.0 20740.0 321908.0 5 REGION_05 .011 .044 3241.9 20488.1 239460.3 6 REGION_06 .056 .123 4065.8 29950.5 291986.8 7 REGION_07 .231 .002 669.7 10505.8 211413.7 8 REGION_08 .237 .000 712.7 10698.0 219911.1 9 REGION_09 .291 .000 573.2 8878.0 129890.5 10 REGION_10 .230 .000 833.0 8158.0 204488.0 11 REGION_11 .363 .000 1648.9 8508.4 216606.7 12 REGION_12 .060 .345 1214.0 20740.0 321908.0 13 REGION_13 .019 .070 6097.5 38032.0 296993.3 14 REGION_14 .165 .000 963.0 13890.0 228968.0 15 REGION_15 .170 .000 966.6 13649.4 230421.2 16 REGION_16 .187 .000 668.6 11367.4 238181.7 17 REGION_17 .248 .000 567.9 10012.3 240578.5 18 REGION_18 .000 .000 0.0 0.0 0.0 19 REGION_19 .020 .079 6112.8 38458.8 300531.0 20 REGION_20 .164 .000 1006.5 14086.6 229398.8 21 REGION_21 .094 .000 1575.3 14059.3 215678.7 22 REGION_22 .138 .000 1283.2 13178.6 225374.2 23 REGION_23 .060 .345 1214.0 20740.0 321908.0 24 REGION_24 .021 .104 2953.5 21216.1 268620.1 25 REGION_25 .099 .000 3714.8 26323.6 256208.8 26 REGION_26 .080 .000 1690.0 14091.0 213190.0 27 REGION_27 .471 .000 3489.0 9727.9 185337.0 28 REGION_28 .000 .000 0.0 0.0 198743.0 29 REGION_29 .005 .024 765.7 5364.6 215793.3 30 REGION_30 .006 .000 5329.7 30809.6 293459.2 31 REGION_31 .000 .000 0.0 0.0 295895.2 32 REGION_32 .471 .000 3489.0 9728.0 185337.0 33 REGION_33 .471 .000 3489.0 9728.0 185337.0 34 REGION_34 .000 .000 0.0 0.0 198742.9 35 REGION_35 .001 .000 956.2 5527.7 211986.9 36 REGION_36 .000 .000 0.0 0.0 200542.2 37 REGION_37 .110 .000 927.6 12207.9 245214.9 38 REGION_38 .137 .000 1164.0 15380.0 257727.9 39 REGION_39 .000 .000 0.0 0.0 198743.0 40 REGION_40 .127 .000 270.7 2732.5 215829.5


KEPCO & KHNP A74

Non-Proprietary

41 REGION_41 .068 .000 475.5 3307.1 206609.3 42 REGION_42 .121 .000 985.2 9104.1 230098.3 43 REGION_43 .179 .000 1467.4 14243.8 250689.9 44 REGION_44 .364 .000 774.0 7813.0 247255.1 45 REGION_45 .278 .000 1694.8 11209.3 241575.3 46 REGION_46 .246 .000 1747.6 12268.8 242725.5 47 REGION_47 .296 .000 1536.1 10136.0 219671.5 48 REGION_48 .230 .000 833.0 8158.0 204488.0 49 REGION_49 .230 .000 833.0 8158.0 204488.0 50 REGION_50 .329 .000 789.3 7902.4 236177.6 51 REGION_51 .364 .000 774.0 7813.0 247255.0 52 REGION_52 .329 .000 1180.3 9208.6 244573.2 53 REGION_53 .280 .000 1762.4 11208.2 240730.5 54 REGION_54 .329 .000 1618.0 7601.4 184677.7 55 REGION_55 .230 .000 833.0 8158.0 204488.0 56 REGION_56 .230 .000 833.0 8158.0 204488.0 57 REGION_57 .249 .000 824.9 8110.7 210352.5 58 REGION_58 .366 .000 735.1 7571.5 232563.3 59 REGION_59 .394 .000 639.1 6980.3 207319.3 60 REGION_60 .358 .000 742.4 7030.8 203689.4 61 REGION_61 .379 .000 1347.9 6319.5 169375.2 62 REGION_62 .230 .000 833.0 8158.0 204488.0 63 REGION_63 .230 .000 833.0 8158.0 204488.0 64 REGION_64 .230 .000 833.0 8158.0 204488.0 65 REGION_65 .260 .000 768.2 7852.5 196450.4 66 REGION_66 .331 .000 554.2 7063.5 164027.7 67 REGION_67 .361 .000 550.8 6830.3 169390.6 68 REGION_68 .377 .000 549.2 6708.4 172231.1 69 REGION_69 .230 .000 833.0 8158.0 204488.0 70 REGION_70 .230 .000 833.0 8158.0 204488.0 71 REGION_71 .231 .000 792.2 8105.1 195708.2 72 REGION_72 .236 .000 586.7 7840.1 151589.5 73 REGION_73 .237 .001 524.0 7974.7 157311.5 74 REGION_74 .257 .029 526.7 6408.4 150381.7 75 REGION_75 .230 .000 833.0 8158.0 204488.0 76 REGION_76 .230 .000 833.0 8158.0 204488.0 77 REGION_77 .230 .000 805.4 8217.0 205185.6 78 REGION_78 .234 .000 398.3 9056.5 213318.5 79 REGION_79 .197 .006 260.8 7287.0 205548.1 80 REGION_80 .278 .064 466.7 6051.1 168408.7 81 REGION_81 .230 .000 833.0 8158.0 204488.0 82 REGION_82 .234 .000 716.0 8868.6 213067.5 83 REGION_83 .235 .000 667.3 9071.8 215529.0 84 REGION_84 .170 .000 707.1 10957.3 229263.9 85 REGION_85 .172 .000 529.9 11304.8 220020.2 86 REGION_86 .060 .345 1214.0 20740.0 321908.0 87 REGION_87 .060 .345 1214.0 20740.0 321908.0 88 REGION_88 .060 .345 1214.0 20740.0 321907.9 89 REGION_89 .179 .106 1020.4 12629.9 248073.5 90 REGION_90 .191 .003 743.0 11155.9 241657.3 91 REGION_91 .164 .011 749.8 12744.8 263846.3 92 REGION_92 .251 .064 1064.5 12659.0 270788.8 93 REGION_93 .060 .345 1214.0 20740.0 321908.0 94 REGION_94 .060 .345 1214.0 20740.0 321908.0 95 REGION_95 .053 .302 1063.1 18161.5 302849.1 96 REGION_96 .060 .340 1276.5 20934.0 321278.0 97 REGION_97 .167 .034 642.5 12898.1 262167.9 98 REGION_98 .256 .061 777.8 9576.2 221150.2 99 REGION_99 .274 .030 648.9 8967.1 176580.0 Cyclical File Set (Stacked STCs)


KEPCO & KHNP A75

Non-Proprietary

AATMOS-STC01.txt ********************************************************************** * SOURSE TERM NUMBER 1 OF 19 (STC 1) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 1' * RDOALARM001 126000. 126000. 126000. 126000. * RDNUMREL001 4 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 * RDPLHITE001 18. 18. 18. 18. * RDPLUDUR001 9360. 18360. 24480. 86400. * RDPDELAY001 126000. 135360. 153720. 178200. * * Initial value of sigma-y for each plume--Note: values required for each plume * a SIGYINIT001 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER (STC 1) FROM MAAP CASE XXXX Run XXXX * RELEASE FRACTIONS FOR ISOTOPE GROUPS IN RELEASE 1 OF 21 (STC 1) * * ISOTOPE GROUPS: * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 8.2E-1 1.1E-1 6.1E-2 6.9E-2 1.4E-3 3.6E-2 8.3E-5 7.3E-4 8.1E-3 RDRELFRC002 2.4E-2 4.4E-2 9.9E-3 1.6E-2 2.4E-3 1.6E-3 6.5E-5 1.9E-4 8.1E-3 RDRELFRC003 6.1E-2 1.1E-2 3.0E-3 2.4E-3 5.3E-3 1.7E-5 4.2E-4 4.4E-4 5.4E-3 RDRELFRC004 2.8E-2 2.9E-1 1.2E-1 1.0E-1 4.1E-3 4.0E-3 6.3E-3 6.3E-3 5.1E-3 *************************************************************************** . AATMOS-STC02.txt ********************************************************************** * SOURSE TERM NUMBER 2 OF 19 (STC 2) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 2' * RDOALARM001 163800. 163800. 163800. * RDNUMREL001 3 *


KEPCO & KHNP A76

Non-Proprietary

RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 * RDPLHITE001 18. 18. 18. * RDPLUDUR001 720. 79560. 86400. * RDPDELAY001 163800. 164520. 244080. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 2 OF 19 (STC 2) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 1.9E-3 2.0E-3 2.9E-11 9.0E-10 1.6E-10 1.2E-10 1.6E-12 2.1E-11 7.6E-12 RDRELFRC002 3.3E-3 3.5E-3 2.2E-6 9.2E-6 1.2E-5 1.2E-6 4.6E-8 2.1E-7 6.9E-8 RDRELFRC003 6.2E-4 6.6E-4 1.7E-7 1.3E-8 3.6E-7 1.5E-9 6.1E-11 1.7E-9 9.1E-11 *************************************************************************** . AATMOS-STC03.txt *************************************************************************** * SOURSE TERM NUMBER 3 OF 19 (STC 3) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 3' * RDOALARM001 36720. 36720. 36720. 36720. 36720. 36720. 36720. 36720. * RDNUMREL001 8 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 0. 0. 0. 0. 0. 0. 0. 0. * RDPLUDUR001 2880. 3240. 720. 5400. 6840. 19440. 12600. 84600. * RDPDELAY001 36720. 39600. 42840. 43560. 48960. 55800. 75240. 87840. * * Initial value of sigma-y for each plume--Note: values required for each plume *


KEPCO & KHNP A77

Non-Proprietary

SIGYINIT001 9.302 9.302 9.302 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 3 OF 19 (STC 3) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 5.6E-1 2.2E-1 2.2E-1 3.3E-2 1.1E-2 4.2E-3 7.0E-5 7.0E-4 1.3E-2 RDRELFRC002 1.7E-1 2.5E-2 2.5E-2 5.4E-2 2.5E-3 3.4E-3 3.3E-5 3.1E-4 3.6E-3 RDRELFRC003 1.8E-1 2.5E-2 2.5E-2 6.0E-2 1.3E-3 2.2E-2 3.4E-5 1.8E-4 3.0E-3 RDRELFRC004 1.2E-2 6.8E-3 6.8E-3 1.1E-2 2.5E-4 1.9E-3 1.9E-5 2.5E-5 1.6E-3 RDRELFRC005 4.1E-2 1.5E-2 1.5E-2 1.9E-2 4.3E-3 1.3E-2 2.3E-4 2.2E-3 1.0E-2 RDRELFRC006 3.8E-2 7.8E-2 1.6E-2 5.9E-3 5.9E-4 3.8E-4 2.1E-5 6.0E-4 7.6E-4 RDRELFRC007 3.6E-4 3.6E-2 3.0E-2 2.4E-2 1.4E-6 0.0E+0 1.0E-7 3.4E-6 1.3E-6 RDRELFRC008 0.0E+0 9.5E-3 9.7E-2 9.5E-2 0.0E+0 0.0E+0 1.7E-8 9.3E-7 0.0E+0 *************************************************************************** . AATMOS-STC04.txt *************************************************************************** * SOURSE TERM NUMBER 4 OF 19 (STC 4) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 4' * RDOALARM001 37800. 37800. 37800. 37800. 37800. 37800. 37800. * RDNUMREL001 7 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 0. 0. 0. 0. 0. 0. 0. * RDPLUDUR001 1800. 3600. 1080. 5040. 5040. 50040. 86400. * RDPDELAY001 37800. 39600. 43200. 44280. 49320. 54360. 104400. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.)


KEPCO & KHNP A78

Non-Proprietary

* * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 4 OF 19 (STC 4) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 6.3E-1 1.4E-1 1.5E-1 3.1E-2 7.8E-3 4.6E-3 5.4E-5 5.5E-4 9.6E-3 RDRELFRC002 2.4E-1 2.9E-2 2.9E-2 1.1E-1 4.0E-3 2.0E-2 5.7E-5 4.4E-4 6.2E-3 RDRELFRC003 4.4E-2 1.1E-2 1.1E-2 2.3E-2 4.6E-4 1.1E-2 1.0E-5 4.2E-5 1.4E-3 RDRELFRC004 1.3E-2 5.8E-3 5.8E-3 9.6E-3 6.1E-4 2.9E-3 4.0E-5 2.3E-4 2.5E-3 RDRELFRC005 2.7E-2 1.2E-2 1.2E-2 1.3E-2 3.6E-3 1.1E-2 1.9E-4 1.9E-3 8.5E-3 RDRELFRC006 5.0E-2 5.6E-2 4.6E-2 5.9E-2 9.5E-4 1.3E-3 4.1E-5 8.0E-4 1.5E-3 RDRELFRC007 0.0E+0 1.9E-4 2.3E-2 2.7E-2 0.0E+0 0.0E+0 0.0E+0 0.0E+0 0.0E+0 *************************************************************************** . AATMOS-STC05.txt *************************************************************************** * SOURSE TERM NUMBER 5 OF 19 (STC 5) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 5' * RDOALARM001 9360. 9360. 9360. * RDNUMREL001 3 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 * RDPLHITE001 0. 0. 0. * RDPLUDUR001 3240. 1800. 86400. * RDPDELAY001 9360. 12600. 14400. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 5 OF 19 (STC 5) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' *


KEPCO & KHNP A79

Non-Proprietary

* XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 9.4E-3 1.4E-4 1.1E-4 9.6E-5 1.5E-7 1.6E-5 1.3E-8 2.5E-8 6.6E-6 RDRELFRC002 3.0E-1 7.4E-3 1.9E-3 2.7E-3 1.7E-4 1.7E-4 2.2E-5 1.3E-4 1.4E-4 RDRELFRC003 5.0E-1 3.7E-5 1.2E-5 2.2E-5 3.6E-6 7.3E-8 5.6E-7 1.5E-5 3.4E-6 *************************************************************************** . AATMOS-STC06.txt *************************************************************************** * SOURSE TERM NUMBER 6 OF 19 (STC 6) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 6' * RDOALARM001 6480. 6480. 6480. 6480. 6480. * RDNUMREL001 5 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 0. 0. 0. 0. 0. * RDPLUDUR001 1080. 4680. 1440. 9720. 86400. * RDPDELAY001 6480. 7560. 12240. 13680. 23400. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 6 OF 19 (STC 6) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 2.9E-2 9.5E-3 9.5E-3 2.9E-4 2.5E-5 1.7E-5 7.5E-7 7.5E-6 4.6E-5 RDRELFRC002 6.3E-2 9.8E-3 9.2E-3 1.0E-2 2.1E-4 1.5E-4 6.3E-6 5.2E-5 2.6E-4 RDRELFRC003 1.3E-1 1.4E-2 1.1E-2 1.3E-2 6.3E-4 4.0E-4 2.7E-5 3.0E-4 7.2E-4 RDRELFRC004 1.7E-1 1.6E-3 1.1E-3 2.1E-3 2.2E-3 4.2E-5 1.4E-4 2.9E-3 1.0E-3 RDRELFRC005 5.6E-1 2.5E-4 1.2E-4 8.1E-4 5.1E-5 1.3E-7 4.5E-6 1.2E-4 3.2E-5 *************************************************************************** . AATMOS-STC07.txt


KEPCO & KHNP A80

Non-Proprietary

*************************************************************************** * SOURSE TERM NUMBER 7 OF 19 (STC 7) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 7' * RDOALARM001 245520. 245520. 245520. 245520. 245520. * RDNUMREL001 5 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 17. 17. 17. 17. 17. * RDPLUDUR001 31680. 48600. 86400. 86400. 86400. * RDPDELAY001 245520. 277200. 325800. 345600. 345600. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 7 OF 19 (STC 7) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 5.0E-1 1.6E-2 9.1E-3 9.9E-3 4.2E-4 1.7E-3 2.5E-5 2.3E-4 7.7E-4 RDRELFRC002 3.4E-1 3.5E-2 5.8E-3 3.1E-3 7.7E-5 4.8E-5 1.6E-6 5.3E-5 6.2E-5 RDRELFRC003 1.6E-1 9.4E-2 5.7E-2 5.2E-2 3.1E-7 6.9E-8 5.4E-9 2.2E-7 1.3E-5 RDRELFRC004 2.5E-3 1.3E-2 2.1E-2 2.0E-2 0.0E+0 0.0E+0 0.0E+0 0.0E+0 2.7E-5 RDRELFRC005 0.0E+0 3.1E-3 1.4E-3 1.5E-3 0.0E+0 0.0E+0 0.0E+0 0.0E+0 4.1E-10 *************************************************************************** . AATMOS-STC08.txt *************************************************************************** * SOURSE TERM NUMBER 8 OF 19 (STC 8) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 8' * RDOALARM001 241920. 241920. 241920. 241920. 241920. 241920. 241920. * RDNUMREL001 7 * RDMAXRIS001 1 *


KEPCO & KHNP A81

Non-Proprietary

RDREFTIM001 0.00 0.50 0.50 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 28. 28. 28. 28. 28. 28. 28. * RDPLUDUR001 19800. 6480. 44640. 83520. 86400. 86400. 86400. * RDPDELAY001 241920. 261720. 268200. 312840. 345600. 345600. 345600. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 8 OF 19 (STC 8) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 8.9E-1 1.8E-1 1.6E-1 1.5E-1 3.4E-3 2.8E-2 5.5E-5 4.6E-4 6.9E-3 RDRELFRC002 5.1E-2 2.5E-2 1.0E-2 1.2E-2 2.0E-4 4.7E-4 2.9E-6 5.4E-5 2.0E-4 RDRELFRC003 2.3E-2 3.0E-3 9.2E-4 1.6E-3 3.3E-4 1.2E-5 2.1E-6 1.4E-4 1.6E-4 RDRELFRC004 1.9E-2 2.1E-2 8.0E-3 4.3E-3 6.6E-7 0.0E+0 7.2E-9 5.6E-7 1.6E-5 RDRELFRC005 1.2E-2 1.8E-3 1.1E-2 9.6E-3 0.0E+0 0.0E+0 0.0E+0 0.0E+0 3.5E-5 RDRELFRC006 4.8E-3 2.3E-2 8.4E-3 1.4E-2 0.0E+0 0.0E+0 0.0E+0 0.0E+0 7.3E-5 RDRELFRC007 0.0E+0 3.1E-3 9.2E-4 1.1E-3 0.0E+0 0.0E+0 0.0E+0 0.0E+0 3.3E-7 *************************************************************************** . AATMOS-STC09.txt *************************************************************************** * SOURSE TERM NUMBER 9 OF 19 (STC 9) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 9' * RDOALARM001 9360. 9360. 9360. 9360. 9360. 9360. 9360. 9360. * RDNUMREL001 8 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 0.50 0.5 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 28. 28. 28. 28. 28. 28. 28. 28. * RDPLUDUR001 5400. 1440. 2160. 1800. 14040. 4320. 42120. 86400. *


KEPCO & KHNP A82

Non-Proprietary

RDPDELAY001 9360. 14760. 16200. 18360. 20160. 34200. 38520. 80640. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 9 OF 19 (STC 9) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 5.1E-5 7.5E-6 6.0E-6 5.2E-6 9.8E-9 7.3E-7 5.7E-10 3.3E-9 1.6E-7 RDRELFRC002 1.5E-5 1.1E-6 5.3E-7 6.1E-7 3.0E-9 1.0E-7 1.1E-10 7.2E-10 4.6E-8 RDRELFRC003 2.1E-5 7.5E-8 9.9E-9 1.1E-8 3.7E-10 4.4E-9 1.3E-11 7.9E-11 3.9E-9 RDRELFRC004 1.8E-5 3.7E-8 4.3E-9 3.5E-9 5.6E-10 3.1E-9 1.3E-11 9.0E-11 4.0E-9 RDRELFRC005 1.4E-4 9.0E-8 1.3E-8 8.8E-9 6.6E-10 1.4E-9 1.7E-11 6.2E-11 3.3E-9 RDRELFRC006 4.1E-5 9.8E-9 1.4E-9 4.1E-10 2.8E-9 2.7E-11 1.2E-10 2.4E-10 4.2E-9 RDRELFRC007 4.0E-4 3.6E-8 5.2E-9 1.6E-9 1.1E-8 5.6E-9 1.7E-10 1.4E-9 1.6E-8 RDRELFRC008 8.9E-4 1.3E-8 9.2E-10 2.3E-11 2.7E-10 0.0E+0 2.4E-12 1.8E-11 3.2E-11 *************************************************************************** . AATMOS-STC10.txt *************************************************************************** * SOURSE TERM NUMBER 10 OF 19 (STC 10) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 10' * RDOALARM001 6120. 6120. 6120. 6120. * RDNUMREL001 4 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 * RDPLHITE001 28. 28. 28. 28. * RDPLUDUR001 23760. 55440. 6480. 86400. * RDPDELAY001 6120. 29880. 85320. 91800. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) *


KEPCO & KHNP A83

Non-Proprietary

* Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 10 OF 19 (STC 10) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 2.5E-4 1.6E-5 1.4E-5 2.0E-5 3.6E-7 2.8E-7 1.2E-8 9.2E-8 4.4E-7 RDRELFRC002 6.8E-4 7.5E-6 1.8E-6 2.0E-6 3.0E-8 3.5E-8 1.1E-9 7.1E-9 4.5E-8 RDRELFRC003 8.4E-5 6.1E-7 8.9E-8 2.5E-8 1.1E-10 1.3E-10 4.0E-12 2.6E-11 1.7E-10 RDRELFRC004 1.1E-3 1.1E-7 1.6E-8 3.5E-9 1.0E-11 1.3E-11 3.9E-13 2.4E-12 1.6E-11 *************************************************************************** . AATMOS-STC11.txt *************************************************************************** * SOURSE TERM NUMBER 11 OF 19 (STC 11) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 11' * RDOALARM001 6120. 6120. 6120. 6120. 6120. 6120. * RDNUMREL001 6 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 0. 0. 0. 0. 0. 0. * RDPLUDUR001 11160. 28440. 46080. 86400. 86400. 86400. * RDPDELAY001 6120. 17280. 45720. 91800. 301320. 345600. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 11 OF 19 (STC 11) MAAP CASE XXXX Run XXXX *


KEPCO & KHNP A84

Non-Proprietary

RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 9.8E-5 1.2E-5 1.1E-5 1.5E-5 7.6E-7 1.5E-7 3.0E-8 4.9E-7 4.8E-7 RDRELFRC002 3.2E-4 6.1E-7 2.1E-7 5.0E-7 2.0E-7 2.2E-9 1.1E-8 3.0E-7 1.3E-7 RDRELFRC003 5.3E-4 1.2E-5 1.6E-6 7.7E-7 1.7E-9 5.9E-11 1.1E-10 2.9E-9 2.3E-8 RDRELFRC004 5.9E-1 1.0E-5 6.0E-6 1.9E-4 9.0E-9 6.0E-8 3.1E-10 5.6E-10 5.9E-6 RDRELFRC005 4.0E-1 5.2E-5 4.1E-5 9.7E-5 3.4E-7 2.8E-6 4.5E-11 6.7E-11 6.0E-5 RDRELFRC006 2.4E-3 8.3E-7 1.6E-6 5.9E-6 7.5E-8 6.2E-7 0.0E+0 0.0E+0 0.0E+0 *************************************************************************** . AATMOS-STC13.txt *************************************************************************** * SOURSE TERM NUMBER 12 OF 19 (STC 13) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 13' * RDOALARM001 12240. 12240. 12240. 12240. 12240. 12240. * RDNUMREL001 6 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 28. 28. 28. 28. 28. 28. * RDPLUDUR001 6480. 26280. 29160. 15840. 16920. 72000. * RDPDELAY001 12240. 18720. 45000. 74160. 90000. 106920. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 12 OF 19 (STC 13) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 6.2E-1 4.9E-2 3.2E-2 5.5E-2 1.0E-3 2.1E-3 2.9E-5 2.5E-4 1.1E-3 RDRELFRC002 3.5E-1 1.8E-2 5.1E-3 6.3E-3 9.9E-5 2.1E-4 2.8E-6 2.4E-5 1.2E-4 RDRELFRC003 3.1E-2 6.9E-2 9.1E-3 4.5E-3 2.6E-7 5.5E-7 7.3E-9 6.3E-8 2.9E-7 RDRELFRC004 1.3E-3 1.6E-2 2.2E-3 7.0E-4 0.0E+0 0.0E+0 0.0E+0 0.0E+0 0.0E+0 RDRELFRC005 1.6E-4 4.1E-3 6.4E-4 1.3E-4 0.0E+0 0.0E+0 0.0E+0 0.0E+0 0.0E+0


KEPCO & KHNP A85

Non-Proprietary

RDRELFRC006 0.0E+0 8.2E-4 1.9E-4 7.5E-5 0.0E+0 0.0E+0 0.0E+0 0.0E+0 0.0E+0 *************************************************************************** . AATMOS-STC14.txt *************************************************************************** * SOURSE TERM NUMBER 13 OF 19 (STC 14) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 14' * RDOALARM001 7560. 7560. 7560. 7560. 7560. * RDNUMREL001 5 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 17. 17. 17. 17. 17. * RDPLUDUR001 86400. 54000. 17280. 86400. 86400. * RDPDELAY001 7560. 96120. 150120. 167400. 270000. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 13 OF 19 (STC 14) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 1.2E-2 4.0E-5 1.5E-5 1.9E-5 1.2E-6 1.7E-7 7.0E-8 1.2E-6 7.5E-7 RDRELFRC002 6.9E-1 1.5E-3 3.4E-4 1.3E-4 5.1E-8 3.2E-8 2.4E-9 2.6E-8 5.8E-6 RDRELFRC003 8.9E-2 1.3E-4 1.2E-4 1.9E-4 1.1E-8 1.4E-8 4.4E-10 3.0E-9 2.2E-6 RDRELFRC004 1.6E-1 5.5E-4 1.6E-4 6.2E-4 3.0E-8 8.1E-8 1.1E-9 7.5E-9 9.9E-6 RDRELFRC005 3.8E-2 4.1E-4 1.0E-4 1.4E-3 1.1E-8 6.6E-8 3.1E-10 1.1E-9 7.2E-6 *************************************************************************** . AATMOS-STC16.txt *************************************************************************** * SOURSE TERM NUMBER 14 OF 19 (STC 16) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 16' *


KEPCO & KHNP A86

Non-Proprietary

RDOALARM001 7200. 7200. 7200. * RDNUMREL001 3 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 * RDPLHITE001 17. 17. 17. * RDPLUDUR001 79200. 74880. 86400. * RDPDELAY001 7200. 86400. 161280. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 14 OF 19 (STC 16) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 2.0E-3 4.7E-5 1.6E-5 1.8E-5 1.2E-6 1.9E-7 6.9E-8 1.2E-6 7.2E-7 RDRELFRC002 7.7E-1 9.9E-3 1.6E-3 7.8E-4 2.2E-7 9.3E-8 1.5E-8 2.9E-7 2.0E-6 RDRELFRC003 2.0E-1 4.6E-3 1.3E-3 1.1E-3 5.4E-8 2.3E-7 1.6E-9 1.1E-8 1.2E-6 *************************************************************************** . AATMOS-STC17.txt *************************************************************************** * SOURSE TERM NUMBER 15 OF 19 (STC 17) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 17' * RDOALARM001 7200. 7200. 7200. 7200. * RDNUMREL001 4 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 * RDPLHITE001 17. 17. 17. 17. * RDPLUDUR001 19800. 86400. 70920. 86400. *


KEPCO & KHNP A87

Non-Proprietary

RDPDELAY001 7200. 27000. 222480. 293400. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 15 OF 19 (STC 17) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 2.1E-4 1.6E-5 1.3E-5 1.9E-5 3.7E-7 3.7E-7 1.0E-8 9.5E-8 3.6E-7 RDRELFRC002 2.5E-3 8.5E-6 1.9E-6 1.6E-6 2.5E-8 5.3E-8 7.0E-10 6.0E-9 2.7E-8 RDRELFRC003 7.9E-1 1.1E-4 2.2E-5 1.3E-5 2.2E-9 4.7E-9 6.2E-11 5.3E-10 2.4E-9 RDRELFRC004 2.0E-1 7.0E-6 6.3E-6 1.4E-5 0.0E+0 4.3E-11 0.0E+0 0.0E+0 0.0E+0 *************************************************************************** . AATMOS-STC18.txt *************************************************************************** * SOURSE TERM NUMBER 16 OF 19 (STC 18) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 18' * RDOALARM001 6480. 6480. 6480. 6480. 6480. * RDNUMREL001 5 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 0.0 * RDPLHITE001 17. 17. 17. 17. 17. * RDPLUDUR001 86400. 7560. 32040. 86400. 86400. * RDPDELAY001 6480. 95400. 102960. 135000. 268560. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) *


KEPCO & KHNP A88

Non-Proprietary

* Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 16 OF 19 (STC 18) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 5.9E-4 1.6E-5 1.2E-5 1.7E-5 1.2E-6 1.7E-7 6.9E-8 1.2E-6 7.3E-7 RDRELFRC002 7.3E-1 2.5E-3 3.9E-4 1.3E-4 4.0E-8 1.0E-8 2.5E-9 4.6E-8 2.6E-6 RDRELFRC003 1.2E-1 1.3E-3 3.6E-4 5.5E-4 2.3E-8 1.7E-8 1.1E-9 1.4E-8 5.2E-6 RDRELFRC004 1.4E-1 2.3E-3 4.7E-4 4.5E-4 4.7E-8 1.2E-7 1.8E-9 1.6E-8 1.7E-5 RDRELFRC005 1.5E-2 6.1E-4 1.2E-4 1.6E-3 1.2E-8 7.1E-8 3.2E-10 1.2E-9 8.9E-6 *************************************************************************** . AATMOS-STC19.txt *************************************************************************** * SOURSE TERM NUMBER 17 OF 19 (STC 19) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 19' * RDOALARM001 6840. 6840. 6840. 6840. * RDNUMREL001 4 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 * RDPLHITE001 17. 17. 17. 17. * RDPLUDUR001 8640. 86400. 86400. 86400. * RDPDELAY001 6840. 15480. 259200. 345600. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 17 OF 19 (STC 19) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA *


KEPCO & KHNP A89

Non-Proprietary

RDRELFRC001 8.4E-5 1.2E-5 1.1E-5 1.5E-5 2.7E-7 2.0E-7 8.6E-9 7.3E-8 3.1E-7 RDRELFRC002 1.3E-2 1.0E-5 3.7E-6 4.8E-6 8.2E-8 1.5E-7 3.0E-9 2.0E-8 1.3E-7 RDRELFRC003 9.9E-1 4.4E-3 9.7E-4 1.4E-4 0.0E+0 0.0E+0 0.0E+0 0.0E+0 0.0E+0 RDRELFRC004 4.4E-4 8.1E-3 1.6E-3 8.1E-5 0.0E+0 0.0E+0 0.0E+0 0.0E+0 0.0E+0 *************************************************************************** . AATMOS-STC20.txt *************************************************************************** * SOURSE TERM NUMBER 18 OF 19 (STC 20) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 20' * RDOALARM001 86040. 86040. 86040. * RDNUMREL001 3 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 * RDPLHITE001 17. 17. 17. * RDPLUDUR001 6840. 86400. 86400. * RDPDELAY001 86040. 92880. 201600. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 18 OF 19 (STC 20) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 6.6E-1 1.5E-2 2.1E-3 8.3E-4 1.6E-6 2.3E-7 9.7E-8 1.9E-6 2.6E-6 RDRELFRC002 2.7E-1 1.2E-2 2.2E-3 7.9E-4 1.2E-7 1.7E-7 5.8E-9 9.3E-8 1.6E-6 RDRELFRC003 6.1E-2 1.1E-3 8.0E-4 9.3E-4 3.3E-8 1.6E-7 7.8E-10 4.6E-9 7.8E-7 *************************************************************************** . AATMOS-STC21.txt *************************************************************************** * SOURSE TERM NUMBER 19 OF 19 (STC 21) MAAP CASE XXXX Run XXXX RIATNAM1001 'STC 21' * RDOALARM001 86040. 86040. 86040. 86040.


KEPCO & KHNP A90

Non-Proprietary

* RDNUMREL001 4 * RDMAXRIS001 1 * RDREFTIM001 0.00 0.50 0.50 0.50 * RDPLHEAT001 0.0 0.0 0.0 0.0 * RDPLHITE001 17. 17. 17. 17. * RDPLUDUR001 6840. 86400. 86400. 86400. * RDPDELAY001 86040. 92880. 201600. 201600. * * Initial value of sigma-y for each plume--Note: values required for each plume * SIGYINIT001 9.302 9.302 9.302 9.302 (initial sigma-y, calculated for 40 meter wide bldg.) * * Initial value of sigma-z for each plume--Note: values required for each plume * SIGZINIT001 23.26 23.26 23.26 23.26 (initial sigma-z, calculated for 50 meter high bldg.) * * Building height (meters)--Note: values required for each plume * WEBUILDH001 28.0 28.0 28.0 28.0 (APR1400, 91' ABOVE GRADE) * ********************** RELEASE DATA BLOCK ************* * SOURCE TERM NUMBER 19 OF 19 (STC 21) MAAP CASE XXXX Run XXXX * RDATNAM2001 '8RELEASE FRACTIONS OF SOURCE TERM FROM SPS IPE MAAP OUTPUT' * * XE/KR I CS TE SR RU LA CE BA * RDRELFRC001 2.1E-4 1.6E-5 1.4E-5 1.9E-5 2.3E-7 3.9E-7 6.9E-9 4.9E-8 3.6E-7 RDRELFRC002 1.9E-1 5.8E-5 1.1E-5 5.3E-6 1.8E-8 5.5E-8 5.9E-10 3.5E-9 3.2E-8 RDRELFRC003 8.1E-1 6.6E-5 1.6E-5 1.8E-5 8.5E-10 2.5E-9 2.8E-11 1.6E-10 1.5E-9 RDRELFRC004 1.4E-3 5.0E-2 7.9E-3 7.7E-4 0.0E+0 0.0E+0 0.0E+0 0.0E+0 0.0E+0 .

severe accident mitigation design alternatives (samdas) for the … · 2015. 1. 21. · samdas...

Documents