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Mr. Skibo <br /> July 9, 2004 <br /> Page 7 <br /> Joaquin County Soil Survey for the area (USDA, 1992). The following tables indicate the soil <br /> conditions of the adjacent shallow and deep percolation test holes. <br /> Table 3. <br /> Soil Boring Log for P-1 (Shallow and Deep). <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-7 Brown silty clay with gravel. CL <br /> 7-10.5 Light brown/blue-gray silty clay. CL <br /> 10.5-14 Light brown silty clay,hard pan. CL <br /> 14-15 Dark brown cobbles with silty clay matrix. GP <br /> Drilling refusal due to cobbles. <br /> Table 4. <br /> Soil Boring Log for P-2 (Shallow and Deep). <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-10 Brown sandy clay with gravel. CL <br /> 10-13 Light brown sandy clay. CL <br /> 13-25 Reddish brown sandy clay/clayey sand. CL/SC <br /> 6.0 PERCOLATION TEST INFORMATION <br /> 6.1 Percolation Test Boring Locations <br /> One shallow and one deep percolation test were performed on each of the proposed parcels. <br /> The locations of these tests are indicated in Plate 1. <br /> _ <br />