ML111360413
| ML111360413 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 05/12/2011 |
| From: | Glenn Dentel Reactor Projects Branch 1 |
| To: | |
| Dentel, G RGN-I/DRP/BR1/610-337-5233 | |
| Shared Package | |
| ML110610670 | List: |
| References | |
| Download: ML111360413 (18) | |
Text
Calvert Cliffs Nuclear Power Plant Assessment Meeting Calvert Cliffs Nuclear Power Plant Safety Performance in 2010 U.S. Nuclear Plant Safety in light of Japan Events 2010 Reactor Oversight Process Nuclear Regulatory Commission - Region I 1
Agenda
- Introduction
- Discussion of Calvert Cliffs safety performance
- Discussion of U.S. nuclear plant safety in light of nuclear plant events in Japan
- Closing remarks
- NRC to address public questions 2
Todays NRC Representatives
- James Clifford - Deputy Director, Division of Reactor Projects (DRP)
- Glenn Denel - DRP Branch Chief
- Silas Kennedy - Senior Resident Inspector
- Bill Cook - Senior Reactor Analyst
- Karl Farrar - Meeting Facilitator
- Diane Screnci - NRC Public Affairs 3
- Constellation Energy operated Calvert Cliffs safely and in a manner that preserved the public health and safety and protected the environment.
- Unit 1 was in the Licensee Response column of the Action Matrix
- Unit 2 was in the Regulatory Response column of the Action Matrix
- Baseline inspections as well as a Supplemental Inspection are planned for 2011 NRC Assessment Summary 4
NRC Action Matrix Increasing safety significance Increasing NRC inspection efforts Increasing NRC/Licensee management involvement Increasing regulatory actions 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 Degradation in Safety Performance Multiple Yellow Inputs or 1 Red Input; Cornerstone Objectives Met w/
Significant Degradation in Safety Performance Overall Unacceptable Performance; Plants not permitted to Operate w/in this Column; Unacceptable Margin to Safety
- 6800 hours0.0787 days <br />1.889 hours <br />0.0112 weeks <br />0.00259 months <br /> of inspection and related activities
- 2 resident inspectors on site - residents perform inspections daily and can respond to plant events at any time
- 15 regional inspections
- 2 team inspections Inspection Activities in 2010 6
- All Green Performance Indicators
- 13 Green inspection findings
- 1 White inspection finding January 1 through December 31, 2010 Performance Indicator and Inspection Results 7
- Calvert Cliffs was operated safely
- Unit 1 Licensee Response column / Unit 2 Regulatory Response column of the Action Matrix
- Baseline inspections as well as a supplemental inspection for 2011 2010 Calvert Cliffs Nuclear Power Plant Assessment Summary 8
Calvert Cliffs Nuclear Power Plant 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 external events
- 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
- Tsunamis
- Hurricanes
- Floods
- Tornadoes 11
The NRC Requires Defense-In-Depth
- Redundant and diverse safety systems
- 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
- At least two full-time NRC resident inspectors at each nuclear plant
- NRC specialists conduct additional inspections at each nuclear plant 13
NRC Requires Safety Improvements NRC assesses new safety information, develops lessons learned, and requires safety enhancements:
14
- NRC operating experience program
- 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 15
- Near-term actions (<90 days)
- conducting additional inspections
- identifying near-term operational issues
- Longer-term actions
Directors Comments 16 James Clifford, Deputy Director Division of Reactor Projects USNRC, Region I
Meeting Ground Rules
- 1. Please be respectful to the speaker - only one speaker at a time
- 2. See NRC staff if you have procedural questions/concerns or still want to sign up.
- 3. NRC staff members will be available after the meeting to talk to those interested 17
Questions 18