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NORTH SHORE <br /> PROJECT STOCKTON HOUSING <br /> AND REDEVELOPMENT DEPARTMENT Log of Boring 16B-7b <br /> Stockton California PAGE 1 OF 1 <br /> 16Boring location See Site Plan, Figure 2 <br /> Logged by D Widemann <br /> Date started 1/13104 Date finished 1113104 Drilled By Precision <br /> Drilling method Direct Push <br /> Hammer weight/drop 250 lbs Hammer type Hydraulic <br /> Sampler Acetate(soil)&Bailers(GM <br /> z SAMPLES E � <br /> w Sample # a MATERIAL DESCRIPTION <br /> 0 <br /> ' A Number m 20 0 J <br /> 16Ba1;, Surface Conditions <br /> Asphalt <br /> 7 <br /> CLAY{CL) <br /> 2 CL dark brown medium stiff,dry,slightly plastic,no odor no discoloration <br /> 3 <br /> SILT(ML) <br /> 4 yellow-brown, medium stiff dry, slightly plastic no odor no discoloration <br /> 5 50 <br /> 6 20 <br /> I 7 ML <br /> 8 220 <br /> 9 <br /> ' 10 too <br /> 11 <br /> SILT(ML) <br /> 12 120 200 yellow brown, dry to moist,weak odor, abundant olive gray discoloration(80% of <br /> sod) <br /> 13 <br /> 14 140 <br /> 15 500 ML <br /> 16 <br /> strong hydrocarbon odor <br /> 17 170 04 <br /> 18 <br /> 19 <br /> 20 <br /> 21 <br /> 22 <br /> 23 <br /> 24 <br /> 25 <br /> 26 <br />' C 27 <br /> 28 <br /> > 29 <br /> 0 30 <br /> 0 Boring terminated at 18 feet below ground surface <br /> Z Bonngewithcement grout T ab <br /> o NO groundwater <br /> encountered during drilling <br /> Project No Figure <br /> n 2597 10 A-3 <br />