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The costs associated with off-site landspreading of the soils are as follows: Excavation $ 40, 000 Site Restoration 80, 000 Off-site Landspreading (incl. trans. ) 620, 000 Sampling 20, 000 Misc. (Equip. , Manpower, etc. ) 30, 000 $786, 000 Contingency (20%) 157. 000 Total Estimate $943, 200 7.2 . 2 . Thermal Treatment The majority of petroleum products available today are used for energy. Their unique chemical properties allow consideration of incineration processes for remedial activity. the process of incineration invoices the combustion of these organic compounds in the presence of oxygen. There are may types of solids-processing incinerator currently available for use. Waste materials are incinerated in rotating kilns, fixed kilns or hearths, rotating lime or cement kilns, asphalt plants, fluidized bed incinerations, and low temperature strippers. Of the types of incinerators discussed, rotating kiln and fluid- ized bed are available as transportable units for on-site soils processing and as large-scale commercial facilities. The low temperature thermal stripper is specifically designed as a transportable unit. Transportable units are usually delivered on flat-bed trailers in modules which are quickly united and in- stalled. Usually only hood-ups for utilizes are required. Sate-specific regulatory, technical, and economic factors will determine the choice of on- or off-site processing. For the purposes of this report, a general estimate is provided for on-site thermal treatment. Typically, costs are dependent upon the type of incineration process selected. The estimated costs associated with this remedial alternative areas are as follows: o On-sate Mobile Unit ($200/ton) (8000 yd3 x 2600lb/yd3) $2, 080, 000 o Permits and Manpower 320, 000 o Excavation, Backfill & Resurface 120, 000 $2 , 520,000 Contingency (20%) 504 , 000 Total Estimate $3 , 024 , 000 - 16 -