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l. Stockpile soil materials away from edge of excavations. Do not store within drip line of <br /> remaining trees. <br /> 3.8 BACKFILL <br /> A. Backfill excavations promptly,but not before completing the following: <br /> 1. Acceptance of construction below fmish grade including perimeter insulation where <br /> applicable. <br /> 2. Surveying locations of underground utilities for record documents. <br /> 3. Testing,inspecting,and approval of underground utilities. <br /> 4. Concrete form work removal. <br /> 5. Removal of trash and debris from excavation. <br /> B. Place and compact initial bac�ll of satisfactory soil material or subbase material,free of particles <br /> larger than 1 inch,to a height of 12 inches over the utility pipe or conduit. <br /> C. Coordinate backfilling with utilities testing. <br /> D. Fill voids with approved backfill materials as shoring and bracing,and sheeting is removed. <br /> E. Place and compact final bacl�ill of satisfactory soil material to final subgrade. <br /> F. Install warning tape directly above utilities, 12 inches below finished grade,except 6 inches below <br /> subgrade under pavements and slabs. � <br /> G. Drainage Bacicfill: Place and compact drainage backfill of filtering material over subsurface drain, <br /> in width indicated,to within 12 inches of fmal subgrade. Overlay drainage backfill with one layer of filter <br /> fabric,overlapping edges at least 6 inches. <br /> 3.9 FILL <br /> A. Preparation: Remove vegetation,topsoil,debris,wet,and unsatisfactory soil materials,obstructions, <br /> and deleterious materials from ground surface prior to placing fills. <br /> 1. Plow strip,or break up sloped surfaces steeper than 1 vertical to 4 horizontal so fill material <br /> will bond with existing surface. <br /> A. Place fill material in layers to required elevations for each location listed below. <br /> 1. Under grass,use satisfactory excavated or bonow soil material. <br /> 2. Under wallcs and pavements, use subbase or base material, or satisfactory excavated or <br /> borrow soil material. <br /> 3. Under steps and ramps,use subbase material. <br /> 4. Under building slabs,use drainage fill material. <br /> 3.10 MOISTURE CONTROL <br /> A. Grade all contours so the slope is away from all structures and starting 6"below finished building <br /> surfaces IE,stucco,wood,Etc. <br /> 3.11 COMPACTION <br /> Page 4 of 6 <br />