Text

Aam - NRC Slides for May 18, 2011
	ML111430748
Person / Time
Site:	Limerick
Issue date:	05/18/2011
From:	Paul Krohn; Reactor Projects Region 1 Branch 4
To:	;
	Krohn P
References
	Download: ML111430748 (20)
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Limerick Annual Assessment Meeting Limerick Generating Station Safety Performance in 2010 U.S. Nuclear Plant Safety in light of Japan Events 2010 Reactor Oversight Process Nuclear Regulatory Commission - Region I 1

NRC Representatives

Paul Krohn - Branch Chief

Eugene DiPaolo - Senior Resident Inspector

Nicole Sieller - Resident Inspector 2

Agenda

Introduction

Discussion of Limerick performance during 2010 2010

Discussion of U.S. nuclear plant safety in light of Japan events

NRC to address public questions

Closing remarks 3

Exelon operated Limerick in a manner that preserved the public health and safety and protected the environment.

NRC Assessment Summary

Licensee Response Column of the Action Matrix

Baseline inspections are planned for 2011 4

NRC Action Matrix Licensee

Response

Regulatory

Response

Degraded Cornerstone Multiple Repetitive Degraded Cornerstone Unacceptable Performance All Inputs are Green; Cornerstone Objectives Fully Met 1 or 2 White Inputs; Cornerstone Objectives Fully Met 2 White or 1 Yellow Input; Cornerstone Objectives Met w/

Moderate Multiple Yellow Inputs or 1 Red Input; Cornerstone Objectives Met w/

Significant Overall Unacceptable Performance; Plants not permitted to Increasing safety significance Increasing NRC inspection efforts Increasing NRC/Licensee management involvement Increasing regulatory actions Fully Met Fully Met Moderate Degradation in Safety Performance Significant Degradation in Safety Performance permitted to Operate w/in this Column; Unacceptable Margin to Safety

5891 hours0.0682 days <br />1.636 hours <br />0.00974 weeks <br />0.00224 months <br /> of inspection and related activities

2 resident inspectors on site - residents perform inspections daily and can respond to plant Inspection Activities in 2010 events at any time

18 regional inspectors

2 major team inspections Fire Protection Inspection Problem Identification

& Resolution 6

All Green Performance Indicators January 1 through December 31, 2010 Performance Indicator and Inspection Results

5 Non Cited Violations

No Greater than Green inspection findings 7

Limerick was operated safely

Licensee Response column of the Action Matrix

Baseline inspections planned for 2011 2010 Limerick Assessment Summary Baseline inspections planned for 2011 8

Peach Bottom Assessment Meeting U.S. Nuclear Plant Safety in Light of Japan Events 9

U.S. Nuclear Plants Remain Safe

NRC requires plants to be designed to withstand site specific external events

NRC requires a defense-in-depth approach to NRC requires a defense in depth approach to safety

NRC performs independent safety inspections

NRC assesses new safety information and requires improvements 10

Designed for Site Specific Natural Events

Earthquakes

Tsunamis

Hurricanes

Floods

Tornadoes 11

The NRC Requires Defense-In-Depth

Redundant and diverse safety systems

Multiple physical barriers to

Multiple physical barriers to contain radioactive material

Testing and inspection of systems important to safety

Emergency planning 12

NRC Independent Safety Inspections Reactor Oversight Program

NRC inspectors have unfettered access to all plant activities related to nuclear safety and security y

y

At least two full-time NRC resident inspectors at each nuclear plant

NRC inspectors review many areas including Operations, Maintenance, Security, Engineering, Radiological Controls, and Fire Protection 13

NRC Requires Safety Improvements NRC assesses new safety information, develops lessons learned, and requires safety enhancements:

NRC operating experience program 14

Rulemaking (Station Blackout)

Post TMI Actions

Post 9/11 Orders

Generic Safety Issues

NRC Response to Events in Japan

NRC conducting a methodical and systematic review

Near term actions (<90 days) d ti dditi l

15

- conducting additional inspections.

- identifying near term operational issues

Longer term actions

Meeting Ground Rules Rich Barkley, PE, Nuclear & Environmental Engineer, Meeting Facilitator

Please ensure you have filled out a white card if youd like to speak

To be fair, the amount of time allotted will be limited and based on the number of speakers who sign up

Please be courteous to the speaker, NRC staff, and other meeting attendees

Written comments are welcome during and after this meeting - Please give them to any NRC Representative. Comments may be sent via mail via the NRC Meeting Feedback Form.

Questions 17

Information Resources Regarding Events in Japan