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{ <br /> t ziderations, project plans and specifications. <br /> a. <br /> Site 'Preparation: At thestart of the -grading operation, <br /> i -the .site should be cleared of .grass and -debris. In areas of <br /> -heavy grass or weed growth, the zipper 2 to .4 inches of soil <br /> containing vegetation and ..root growth should be stripped from <br /> -the areas to be graded. The :depth of stripping and. root re- <br /> -moval should be verified by the Soils Engineer at the time. of <br /> site preparation. This material will not be suitable for. re- <br /> use as engineered. fill, but may be -used as topsoil. . Trees to <br /> be removed .should have their .roottsystems removed to a depth <br /> of at -least '.3 feet. Excavations caused by root removal should <br /> be .backfilled as engineered fill. <br /> .All organic and deleterious materials :must be removed from <br /> :areas which will receive building foundations, engineered fills, <br /> ._slabs, pavement, or from other areas deemed important by the <br /> .Soils .Engineer. Resulting excavations or soft areas should be <br /> -backfilled as .specified .for engineered fill. <br /> .In fill areas beneath the buildings to a distance of at <br /> .least 5 feet -beyond the perimeter foundation lines and 2 feet <br /> .beyond exterior concrete slabs .-and paved areas, the ground sur- } <br /> r <br /> face exposed by stripping .and excavating _.should be scarified to i <br /> a depth. of 6 to 8 ,inches, moisture conditioned as required for . s . <br /> i <br /> -compaction, and compacted .as ::speci=fied .for engineered fill. <br /> -(See Exhibit B . for .additional data.) <br /> IEngineered Fill; The project site soils which are fine <br /> , grained and predominately silt will be ;suitable for use as <br /> t <br /> --3- <br /> i <br />