Conceptual Site Model - Argonne National Laboratory

WVDP Phase 1 CSAPNew Cooling Tower. The New Cooling Tower is 20 feet by 20 feet by 11 feet high and it standson a concrete basin. The floor of the basin is an eight inch-thick concrete slab. The undergroundstructure of the New Cooling Tower will be removed during Phase 1 decommissioning activities.Demineralizer Sludge Ponds. The north and south Demineralizer Sludge Ponds are separate,unlined basins excavated in the sand and gravel layer. They are approximately 100 feet long, 50feet wide, and five feet deep. They were used to receive water softener regeneration waste,clarifier overflow and blow-down, boiler blow-down, sand filter backwash, and demineralizerregeneration waste from the Utility Room. The north pond is nearly filled with sediment. Bothponds are radiologically contaminated. As of 2004, the ponds were no longer in service. TheDemineralizer Sludge Ponds will be removed as part of Phase 1 decommissioning activities.Equalization Basin. The Equalization Basin is a lined basin excavated into the sand and gravellayer. It measures 75 feet wide, 125 feet long, by 10 feet deep. It has been used for nonradioactivedischarges. The Equalization Basin will be removed as part of Phase 1decommissioning activities.Equalization Tank. The Equalization Tank is a 20,000-gallon underground concrete tankimmediately north of the Equalization Basin that serves as a replacement for the EqualizationBasin. The Equalization Tank will be removed as part of Phase 1 decommissioning activities.Old Warehouse Slab. The Old Warehouse was a pre-engineered steel building with threesections. The main warehouse section was 80 feet by 144 feet by approximately 21 feet high atthe roof peak. A 38 foot by 42 foot by 15 foot high room was attached to the north end of thebuilding that housed a radiological counting facility. A double-wide office trailer was located ona concrete foundation wall at the south end of the building. The Old Warehouse was removeddown to its concrete floor slab at grade in May 2007. The Old Warehouse slab will be removed aspart of Phase 1 decommissioning activities.South Waste Tank Farm Test Tower. The South Waste Tank Farm Test Tower is a preengineeredstructure erected as a stack of modules including ladders, handrails, and grating. Theexterior “skin” is fabric. The South Tower is 16 feet by 16 feet by 48 feet high. It will be removedduring Phase 1 decommissioning. (A North Tower also had been present; it was removed to itsfoundation in October 2006.)Rev. 1 F-2