ML110730589
| ML110730589 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 03/14/2011 |
| From: | Xcel Energy |
| To: | NRC/NMSS/SFST/LID/LB |
| Longmire P, NMSS/SFST 301-492-3562 | |
| References | |
| Download: ML110730589 (18) | |
Text
1 Rockville, Maryland March 17, 2011 Prairie Island Independent Spent Fuel Storage Installation License Renewal Pre-Submittal Meeting Prairie Island Independent Spent Fuel Storage Installation License Renewal Pre-Submittal Meeting
2 Xcel Energy Attendees
Lee Samson - Spent Nuclear Fuel Projects Manager
Lynne Gunderson -Projects Licensing Manager
Oley Nelson - Spent Nuclear Fuel Project Engineer
Jennie Eckholt - Licensing Engineer
Bill Roman - Project Engineer
3
Purpose
Prairie Island Nuclear Generating Plant (PINGP)
Independent Spent Fuel Storage Installation (ISFSI) Background
Licensing Approach for Submittal
Scope of License Renewal Submittal
Schedule
Summary
Feedback / Discussion Agenda
4 Purpose
Discuss ISFSI License Renewal Application (LRA) licensing approach and schedule
Obtain NRC feedback
5 PINGP ISFSI Background Site Background
Original Site Specific License issued October 1993
20-year license expires October 31, 2013
TN-40 Cask Design
Amendment for TN-40HT cask design issued in August 2010 License Background
7 Licensing Approach for Submittal
Renewal term of 40 years
Time Limiting Aging Analyses (TLAA)
Aging Management Program (AMP)
Design Basis
Draft NUREG-1927
Recent industry applications and Requests for Additional Information (RAIs)
Regulations and Guidance
8 Scope of License Renewal Submittal Protective Cover Lid Lid Shield Plate Lid Bolts Inner Shell Gamma Shell Neutron Shield Upper Trunnion Lower Trunnion Bottom Gamma Shield Drain Tube Overpressure Tank Seals Neutron Shield TN-40 and TN-40HT Cask Designs
9 Scope of License Renewal Submittal
Draft NUREG-1927
Routine inspections
Outer cask surfaces
Concrete pads
Earthen berm
Additional inspections scheduled summer of 2011
Longest cask in service
Under protective cover
Bottom of cask Inspections
10 Scope of License Renewal Submittal
PI ISFSI Licensing Basis contains 2 Quality Assurance classifications
Safety-Related (SR)
Important to Safety (ITS)
Scoping Criteria
Criterion 1: ITS or SR
Criterion 2: non-ITS or non-SR but failure would impact fulfillment of safety function Scoping
11 Scope of License Renewal Submittal
Identify the intended functions of subcomponents of in-scope structures, systems, and components
Criticality control of the spent fuel (CC)
Heat transfer (HT)
Maintaining a pressure boundary (PB)
Radiation shielding (SH)
Structural support, functional support, or both (SS)
Scoping and Screening results in Section 2 of LRA per draft NUREG-1927 Screening
12 Scope of License Renewal Submittal
AMR Process
Identify structure or component material and environment
Determine if component is subject to an aging effect
Identify aging effects requiring management via
AMP Aging Management Review (AMR)
13 Scope of License Renewal Submittal
Six attributes per draft NUREG-1927
Disposition TLAAs per draft NUREG-1927
Per draft NUREG-1927
Credit existing PINGP programs and activities Managing Aging Effects
14 Scope of License Renewal Submittal
Scope and Content
Benchmark recent industry ISFSI LRAs and RAIs
Includes supplemental analyses of items considered in the PINGP ISFSI original Environmental Report
Recent PINGP/Environmental work
PINGP plant License Renewal Application
State of Minnesota Certificate of Need (Docket No 08-510) for increased storage at PINGP ISFSI Supplemental Environmental Report
15 Schedule
Submittal is scheduled for October 2011
NRC Review schedule?
16 Conclusions
Follow guidance of draft NUREG-1927
No unique issues with Scoping, Screening or AMR
Schedule for submittal is October 2011 Prairie Island ISFSI LRA:
17 Discussion Questions ?
18