Initial Site-Specific De-Inventory Report for Big Rock Point Report No.: RPT-3014537-002
movement of the perimeter fence and security perimeter and fabrication of an equipment staging area adjacent to the ISFSI to stage equipment and provide office space for operations staff. Prior to any operation or cask handling, a pre-job briefing with the operations staff would be conducted to review procedures, verify training of staff, discuss any safety/quality related concerns and practices, and verify adequate resources are available to support the activity. All work performed will be conducted by procedure(s) as required by the conduct of operations practices. Stop work authority would be implemented into the working culture to ensure safety and quality of any operation is achieved. Configuration of the mobile crane would be such that, once staged, the crane would be able to reach the loaded transportation cask, HHT, and canister transfer area. Concurrently, inspections would be performed on the transportation cask components (i.e., impact limiter, lifting trunnions, and other components) to ensure no damage to the transportation cask components exists. Preparations for Unloading a Storage Cask: A loaded storage cask (W150) will be selected and inspected for any damage specifically in the fork lift areas and prepped for moving to the canister transfer area and positioning into the upender/downender. The upender/downender will be positioned over the storage cask impact limiters prior to any upending/downending of a loaded storage cask. Operations will verify that the storage cask tie-rods are tensioned to the original assembly requirements, the storage cask tamper-indicating device(s) is removed, and the storage cask lightning protection system is disconnected, as applicable. The storage cask will be moved in the vertical position to the canister transfer area utilizing an air pad system and heavy forklift. The storage cask will then be positioned for downending by securing it to the upender/downender Figure 6-3. Once the storage cask is verified to be secured, the upender/downender will rotate the storage cask to the horizontal position with a final position for the storage cask that ensure it is level to within ± 5° of horizontal. In accordance with the technical specifications, operations will monitor the temperature of the storage cask using an installed thermocouple. Operations will remove the screens from the two storage cask outlet vents that are oriented horizontally and install temporary shielding in or over these outlet vent openings. The canister transfer hydraulic ram will then be moved into position (if not already pre-staged) and prepared for use. Operations will install the grapple assembly on the hydraulic ram and position the hydraulic ram relative to the bottom of the storage cask in approximate horizontal and vertical alignment with the canister. For this configuration, the canister is pushed from the storage cask (W150) to the transportation cask (TS125). If it becomes necessary to reverse this process, the canister can then be pushed back into the storage cask with the hydraulic ram. Dose rate measurements will be continuously monitored to verify radiation levels are acceptable. Operations will then secure the ram to the storage cask base.
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Initial Site-Specific De-Inventory Report for Big Rock Point May 10, 2017
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