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i7 recommendations : <br />The firm, grey clay encountered in Soil Boring No. I at an e1e\’ation of 929 and <br />the firm, black clay in Soil Boring 2 at an elevation of 930 is suitable for the <br />support of a home. It is our opinion that these soils are capable of supportmg <br />footings proportioned to exert a bearing pressure of no more than 3000 pounds <br />per square foot. <br />The soft clava, fill soils, and the top I foot of the firm, black clay are not suitable <br />and should be removed by excavation from the area of the proposed home and <br />from an oversize strip around the perimeter of the home of one foot in width for <br />ev'cry foot from the footings down to the firm soil. Granular fill may tiien be <br />imported and compacted in layers to support the home. <br />The granular fill should consist of 100®o cnished granular material meeting the <br />Minnesota Department of Transportation's Class 5 specification. Tlie most <br />economical and suitable material for this purpose is usually recycled concrete. <br />The fill should be placed and leveled in the excavation in layers no thicker than 2 <br />feet and the surface compacted using a suitable vibratory roller until no fuither <br />settlement is noticeable from further passes of the roller. Wlien the fill has <br />reached basement footing level, the home may be built using conventional <br />teclmiques except that the garage floor niust be supported by piers per the <br />attached detail.