Monorail storage holes

Radioactive material storage in B6596 (Chapel and East High Bay), B6597 (south high bay), and in the monorail storage holes. 

The capability to store radioactive materials exists at several locations in TAV, including the monorail storage holes, B6596, and B6597. 

Each of the monorail storage holes adjacent to Building 6580,... 

Radioactive material inventories in each remote radioactive material storage area (i.e.. Building 6596 east highbay/Chapel, Building 6597, and the monorail storage holes) will be limited by procedure (ref. Table 3C-11, Prevention Features. Administrative) to less than the Hazard Category 2 threshold values in accordance with DOE-STD-1027-92 (DOE 1992c). 

The HCF has several areas in which the potential for an inadvertent criticality exists. These are the SCBs (Zone 1), the entrance to the SCBs (Zone 2), Zone 2A, Rooms 108, 109, 111, 112, 113, 113A, 114, B6596, B6597, and the monorail storage holes. Chapter 2 describes each of these areas and the processes accomplished in each area. 

Identify possible safety-related systems, structures, or components In II above, flie hole shielding plugs installed at the top of each monorail storage hole where radioactive... 

Criticality in various experiment assemblies -Flooding of monorail storage holes or the high bay areas -Gross procedural error -Gross rearrangement of fissile material -Small masses of fissile material in large assemblies preclude criticality. -Monorail holes topped by weather seal covers. 

No heat/smoke detectors are present in the monorail storage holes. Both Building 6596 east high bay and Building 6597 high bay have heat/smoke detectors at the ceiling level. ... 

Is there a suppression system Yes 0 No If yes, describe type, layout, capability, etc. Buildings 6596 and 6597 have automatic fire protection, sprinkler systems throughout the high bay areas, at the ceiling level. The monorail storage holes do not have fibre suppression systems of anv kind but they do have inherent fire dampers due to their in ground location and steel liner construction. ... 

Due to the absence of both combustible material and ignition sources in the monorail storage holes, only fires in Building 6596 and Building 6597 high bay radioactive material storage areas will be considered. 

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