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' <br /> 1. Acceptance afconstructionbelow finish grade uacludingperimeterinsulation where , <br /> applicable. <br /> 2. Surveying Iocations of undergronnd utilities for record documents. <br /> 3. Testing, inspecting,and approval of underground urilities. ' <br /> 4. Concrete form work removal. <br /> 5. Remova�of trash and debris from excavation. <br /> B. Place and compact initial bacl�ill of satisfactory soil material or subbase material,free of ' <br /> particles larger than 1 inch,to a height of 12 inches over the utility pipe or conduit. <br /> G Coordinate backfilling with utilities testing. ' <br /> D. Fil!voids with approved backfill materials as shoring and bracing,and sheeting is removed. <br /> E. Place and compact final bacicfill of satisfactory soil material to final subgrade. ' <br /> F. Install wazning tape directly above utilities,l2 inches below fmished grade,except 6 inches <br /> below subgrade under pavements and slabs. ' <br /> G. Drainage Backfill:Place and compact drainage backfill of filtering material over subse�rface <br /> drain,in width indicated,to within i2 inches of final subgrade. Overlay draina$e backfill ' <br /> with one layer of filter fabric, overlapping edges at Ieast 6 inches. <br /> 3.9 FILL <br /> A. Preparation: Remove vegetation, topsoil, debris, wet, and unsatisfactory soil materials, ' <br /> obstructions,and deieteri.aus materials from ground surFace prior to placing fills. <br /> 1. Plow stcip,or breaic up sloped surfaces steeper than 1 vertical to 4 horizontal so fill ' <br /> material will bond with existing surface. <br /> A. Place fill mater�al in layers to required eIevations for each location listed below. ' <br /> 1. Under grass,use satisfactory excavated or borrow soil material. <br /> 2. Under walks and pavements,use subbase or base materia�,or satisfactory excavated ' <br /> or borrow soil materiai. <br /> 3. Under steps and ramps, use subbase material. <br /> 4. Under buiiding slabs in all occupied areas,use special gas permeable material(for <br /> Radan prot6ction). , <br /> 3.10 MOISTURE C�NTROL <br /> A. Grade all contours so the slope is away from a1I structures and starting 6"i�elow finished ' <br /> buiIding surfaces IE,stucco,wood,Etc. <br /> 3.I1 COMPACTION ' <br /> A. Place backfill and fill materials in layers not more than 8 inches in loose depth for material <br /> compacted by heavy compaction equipment,and not more ihan 4 inches in loose depth for ' <br /> material compacted by hand-operated tampers. <br /> B. Place backfill and fill materials evenly on all sides of structures to required elevatio�s. <br /> Place backfill and fill uniformly along the full length of each structure. t <br /> C. Percenta.ge of Maximum Dry Density Rec}uiremeirts: Compact soil to not less than the <br /> following pexcentages of maximum dry density according to ASTM D 1557: ' <br /> EARTHWORK Page 4 of b <br /> . ' <br />