Conceptual Site Model - Argonne National Laboratory

WVDP Phase 1 CSAPconcrete footings. The building has a sheet metal roof which supports the Permanent VentilationSystem discharge stack. The Permanent Ventilation System was designed to provide ventilationto the Supernatant Treatment System Support Building, the Supernatant Treatment System valveaisle, the Supernatant Treatment System pipeway, and the HLW tanks. A skid-mounted,Permanent Ventilation System Stack Monitoring Building is located near the east end of thebuilding.Equipment Shelter and Condensers. The Equipment Shelter is a one-story concrete blockbuilding lies immediately north of the Vitrification Facility. It is 40 feet long, 18 feet wide, and12 feet high and has a concrete floor six inches thick, with a small extension on the west side.This structure houses the Waste Tank Farm ventilation system that was formerly used to ventilatethe four waste storage tanks and the Supernatant Treatment System vessels in HLW Tank 8D-1.The condensers are located immediately west of the Equipment Shelter. They were designed tocondense the overheads from Tanks 8D-1 and 8D-2, which were originally designed to be in aself-boiling condition during NFS operations.Con-Ed Building. The Con-Ed Building is a concrete block building located on top of theconcrete vault containing Tank 8D-3 and Tank 8D-4. This building, which is 10 feet wide, 13 feetlong, and 11 feet high, houses the instrumentation and valves used to monitor and control theoperation of Tanks 8D-3 and 8D-4.Supernatant Treatment System Support Building. This building is located adjacent to and aboveTank 8D-1. It is a two-story structure that contains equipment and auxiliary support systemsneeded to operate the Supernatant Treatment System. The upper level is a steel frameworkstructure covered with steel siding. The lower level of the building was constructed withreinforced concrete walls, floors, and ceilings. This building contains a control room; heating,ventilation and air conditioning equipment; utilities; and storage tanks for fresh water and freshzeolite to support Supernatant Treatment System operations. A shielded valve aisle is located onthe lower level of the support building, adjacent to Tank 8D-1. The Supernatant TreatmentSystem pipeway is located on top of the Tank 8D-1 vault. This concrete and steel structurecontains the Supernatant Treatment System piping and structural members that support theSupernatant Treatment System equipment located in Tank 8D-1.Rev. 1 C-3