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Work Plan <br /> Facility Demolition and Soil Excavation <br /> „r Stockton,California <br /> Sierra-Pacific Project No.95-128.06 <br /> items will be placed in steel roll-off containers. Large pieces of plate and pipe will be stacked away <br /> from work areas in a safe manner. Stainless steel items will be inventoried and staged separately. <br /> Debris and waste materials will be placed in separate containers. The contractor will transport all <br /> staged metal to a salvage yard or landfill. Certificates of destruction are requested for all tanks <br /> dismantled off-site. <br /> rl <br /> 3.5 Excavation, Reduction, and Removal_ of Concrete and Asphaffic Pavement <br /> V <br /> Concrete foundations and structures will be excavated, and removed for immediate disposal. Steel <br /> reinforcement bars and components will be separated from broken concrete where possible (concrete <br /> recyclers prefer not to run steel through their compactors, crushers, and screens). Asphaltic concrete <br /> will be staged separately for disposal. Some concrete driveways will not be demolished until next <br /> V <br /> summer. <br /> 3.6 Excavation and Removal of Feed Product-Stained Soil <br /> The proposed excavation work will be done by a licensed contractor with oversight by Sierra-Pacific. <br /> Excavation areas were determined based on the results from Sierra-Pacific's soil investigation <br /> program (See May 29, 1996 - Sierra-Pacific Results of Soils Investigation Report) and the <br /> identification of visual staining. Figure 3 presents the areas of soil contamination based on available <br /> information, where Sierra-Pacific believes that total nitrogen (N) concentrations exceed 200 mg/kg <br /> (ppm). The excavated soil will be staged for agronomic application in an open area at the northeast <br /> comer of the property. Product-stained soils will be blended for consistency and applied to <br /> agricultural fields in accordance with approved crop application rates. Some excavated materials may <br /> �1 <br /> not be suitable for agronomic application and will be disposed at an appropriate landfill. <br /> Product-stained soils will be excavated from designated areas to a maximum depth of 48 inches below <br /> ground surface (bgs). Excavations adjacent to heavy structures and foundations will be offset <br /> Sierra-Pacific Groundwater Consultants, Inc. 6 <br />