ML023110231
| ML023110231 | |
| Person / Time | |
|---|---|
| Site: | Surry, North Anna  |
| Issue date: | 08/21/2002 |
| From: | NRC/NMSS/SFPO |
| To: | Virginia Electric & Power Co (VEPCO) |
| Shared Package | |
| ML023100419 | List: |
| References | |
| Download: ML023110231 (15) | |
Text
++*Dominion+
Spent Fuel Storage Update Surry and North Anna Power Stations August 21, 2002
.,Dominion Spent Fuel Storage Update
- Surry:
- 45 Dry Storage Casks at ISFSI a 1150 Fuel Assemblies in Dry Storage
- North Anna:
- 13 Dry Storage Casks at ISFSI
- 416 Fuel Assemblies in Dry Storage
- Additional TN-32 Loading This Week
I.
'ý-4JFDominion+
Spent Fuel Storage Update Corrective Actions -Seal Failure and Bolting
- Surry:
"* Conax connectors replaced on all TN-32s
"* Desiccant placed under protective covers on TN-32s
- Silver jacket o-rings will be installed during future TN-32 loadings
- Nine of eleven protective covers replaced and bolts re-torqued at the pad e Protective cover replacement project to be completed in 2002
- Dominion Spent Fuel Storage Update Corrective Actions -Seal Failure and Bolting North Anna:
"* Conax connectors acceptable at North Anna
"* Desiccant will be installed during protective cover replacement project
"* Silver jacket o-rings will be installed during future TN-32 loadings
"* Four out of nine protective covers replaced and bolts re-torqued at the pad
"* Protective cover replacement project to be completed in 2003
Dominionw Spent Fuel Storage Update
- North Anna Burnup/Enrichment TS Amendment
- Submittal May 2002
- Permit TN-32 casks at North Anna to store fuel with the following limits:
- 4.3 initial weight percent U-235
- 45,000 MWdIMtU burnup
- 1.02 kW heat load
- Request approval by May 2003
+,4"Dominion Spent Fuel Storage Update Storage of Fuel With Cladding Defects
- Intend to clarify language in TN-32 SER for storage of fuel having cladding defects less than pinholes or hairline cracks
- Considering submitting an amendment for engineered storage of fuel having cladding defects greater than pinholes or hairline cracks
- Needed to increase inventory of fuel assemblies that are acceptable for dry storage
"Dominion Spent Fuel Storage Update Clarification of Surry TN-32 Cask Spacing
- Amendment to permit higher burnup, enrichment, and heat load in TN-32 casks at Surry issued in October 2000
- Spacing previous to amendment was 16-feet nominal, center-to-center
- Spacing requirement with amendment is 16 feet minimum, center-to-center (tech. spec.)
No language in October 2000 licensing basis to "grandfather" TN-32s loaded prior to amendment
- Plan to submit letter for clarification
SlDominiop TN-32 TSAR/FSAR Licensing Basis Evaluation
- The FSAR Rev. 0 requirements meet or exceed the design and fabrication requirements of TSAR Rev. 9A
- Surry and North Anna ISFSI FSARs were changed via 72.48 to reconcile differences
ominion Spent Fuel Storage Update TN-32 TSAR/FSAR Licensing Basis Evaluation
- Present description of TN-32 casks in licensing basis found in TN-32 TSAR, Rev 9A
- Current purchase of 22 TN-32 casks uses fabrication/design of TN-32 FSAR, Rev. 0
- A thorough review of the differences between TN-32s described in TSAR Rev. 9A and FSAR Rev.0 is completed
2002 DryStorage System Procurement Results A
- Dominion,
Scope of Supply e Dry Storage Needed at Surry from 2005 to 2010
- Dry Storage Needed at North Anna from 2007 to 2010
- Option for Storage Needed at Both Stations from 2010 to 2015
..oma~nso
Domini nk Key Issues
"* Storage of High Burnup / High Heat Fuel
"* Storage of Fuel with Cladding Defects
"* Dual Purpose - Storage and Transport
"* Use of General License Vs. Site Specific License
rp.
Chosen System NUHOMS Modules and 32 PTH Canisters
"° Moving to a Canister-Based System is a New Approach at Surry and North Anna
"* Will Be Using This System under Part 72 General License
Schedule
"* Complete Construction of Pad and Delivery of Modules, Canisters and Transfer Cask in First Quarter of 2005
"* Conduct Dry Run During Summer of 2005
"* Load First Canisters in Late 2005 and Early 2006
V Do 0 0io Schedule
"* Complete Construction of Pad and Delivery of Modules, Canisters and Transfer Cask in Fourth Quarter of 2006
"* Conduct Dry Run During Second Quarter of 2007
"* Load First Canisters in Second and Fourth Quarters of 2007