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PROJECT 541 WEST GRANT LINE ROAD Lo of BoringTR-24 <br /> ' Tracy,California g <br /> PAGE 1 OF 1 <br /> • Boring location See Site Plan, Figure 3 Logged by R Richards <br /> Date started 9124103 1Date finished 9124103 <br /> Drilling method Direct push, geoprobe model 5400 mounted on Truck <br /> Hammer weight/drop --- IHammer type --- <br /> Sampler 2-inch-diameter split barrel continuous core <br /> 2 <br /> SAMPLES E >. <br /> r, L7 <br /> MATERIAL DESCRIPTION <br /> t1J sample 4' g <br /> ❑ Number m v $ y0 J <br /> 1 v Surface Conditions Concrete pavement <br /> TR-24-so 5 Inches of concrete <br /> 1 CLAYEY GRAVEL with SAND(GC) <br /> 48/ dark brown, dry,dense,sub-angular gravel(up to 114-inch-diameter), 15-20 <br /> 2 48 GC percent medium sand,25-30 percent fines, FILL <br /> 3- <br /> 4— <br /> CLAY <br /> 4CLAY with SAND (CL) <br /> 5 dark brown, very stiff, dry to moist, X15 percent fide-grained sand, hydrocarbon <br /> 481 odor <br /> 6 48 <br /> 7 <br /> CL <br /> B <br /> 9- <br /> 10— 10 481 58 <br /> 48 <br /> 11' SILTY SAND(SM)SM <br /> 12gray, soft wet, strong hydrocarbon odor <br /> CLAY(CL) <br /> 13 gray with black streaks,very stiff,wet between 16 to 18 feet, soft clay clods in wet <br /> 481 zone, color change to brown at 17 feet,strong hydrocarbon odor <br /> ' 14 48 <br /> 15 <br /> C <br /> ' 16 L <br /> 17 361 <br /> 18 36 <br /> ' 19- <br /> 20- <br /> 21- <br /> 22- <br /> 23- <br /> 24- <br /> 25- <br /> 26— <br /> IL <br /> 920212223242526a 27- <br /> 0 <br /> ' In <br /> 28 <br /> — <br /> In <br /> a <br /> 29— <br /> Z <br /> ' 30 W <br /> Z <br /> Z Bonng terminated i t 19 0 feet *�a�� <br /> Boring backfilled with cement grout �7CR�.R <br /> Z Sha{iow temporary 1-inch PVC screen from 7 to 12 feet <br /> LU Deep temporary hydropunch screen from 16 to 19 feet Project No <br /> � Figure <br /> ' 3577 01 A-24 <br /> LU <br />