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r <br /> Total depth of boring, 59 ft Diameter of borings 8 in Dots drliled, 2/25/92 <br /> Casing diameter, 2 in Lengthb 35 ft Slot thiel 0 02 <br /> Screen dlarrieter, 2 in Length, 20 ft Material types PVC <br /> r� Drilling Compenys Wayne Drilling Co_ DriBery Richard <br /> Method Uaeda Hollow—stem Auger A lrl I oologiotb Justin Power <br /> Signature of Registered Professional ELM <br /> Registration Nos 4,313 atei Ca if <br /> , <br /> DEPTH SAMPLE o P.I.D. USCS DESCRIPTION WaL' <br /> NO. C09)E CONST. <br /> r <br /> 0 Asphalt <br /> CL Clay, damp, stiff, brown, high plasticity <br /> 2 <br /> r SM Silt, gravelly sand, orange brown, dry, loose <br /> 4 <br /> p Clayey silt with trace fine—grained sand orange <br /> 6 S-6 5 18 ppmv ML brown, dry, law plasticity, very stiff <br /> 10 S-1 1 5 <71 CL Cloy, brown hard Enable d .• <br /> ppmv ML Silt with trace fine--grained sand, orange brown with <br /> 1 12 black organic mottling, dry, low plasticity, hard, <br /> (slight coiiche) <br /> 14 <br /> 0 CL Clay, brown, hard, friable, dry <br /> 5-16 5 20 ppmv ML Silt with trace fine—grained sand, orange brown, <br /> 15 domp, low plasticity, very stiff, (micaceous, minor <br /> caliche) <br /> 18 <br /> (section continues downward) <br /> LOG OF BORINGS B-8/MW-7 PATE <br /> FM Unocal <br /> 1665 Pacific Avenue 7 <br /> PROJECT NO. 38012-10gFILE NO Stockton, California <br /> 1 <br />