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h'q KLEINFELDER <br /> File No.: 20-3121-02 <br /> November 2, 1988 <br /> Page 8 <br /> loads are planned, thicker floor slabs on the order of 5 to 6 inches may be required. <br /> The actual floor slab thickness and reinforcing should be provided by the structural <br /> engineer. <br /> Site Preparation and Grading <br /> Site preparation should include the stripping and removal. of vegetation, structures and <br /> the foundations and debris from the areas of construction. The actual depth of <br /> stripping should be determined in the field by a representative of our firm. All <br /> stripped vegetation and debris should be removed from the site and not incorporated in <br /> any of the structural fills. Voids left by the removal of trees and their root systems, <br /> foundations, underground utilities, debris, or other buried objects should be <br /> overexcavated and recompacted. <br /> After stripping and removal of vegetation and debris, and before placement of any <br /> Engineered Fill, the exposed surface soil within and to a minimum of 5 feet beyond all <br /> building areas, should be scarified to a minimum depth of 6 inches and recompacted to <br /> a minimum of 90 percent of the maximum dry density as determined by the ASTM <br /> D-1557 test procedure at a moisture content near optimum. Any loose or soft pockets <br /> of soil or pockets or debris encountered during this process should be overexcavated <br /> and recompacted, free of debris. <br /> Fill required to bring the site to finished grade should consist of on-site soils, free of <br /> debris, or imported granular nonexpansive soil having a maximum percentage passing the <br /> #200 Sieve of 40, a maximum Plasticity Index of 8, and a minimum Resistance-Value of <br /> 40. Such imported fill should be compacted at a moisture content at or near optimum. <br /> as <br /> } <br />.y <br />