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I' <br /> PROJECT 541 WEST GRANT LINE ROAD L� Boring TR-20 <br /> Tracy, California g 0 g <br /> PAGE 1 OF 1 <br /> • Boring location See Site Plan, Figure 3 Logged by D Himes <br /> 4 <br /> Date started 9124103 Date finished 9124103 <br /> ' Drilling method Direct push,geoprobe model 5400 mounted on Bobcat <br /> Hammer weight/drop --- I Hammer type --- <br /> Sampler 2-inch-diameter split barrel continuous core <br /> _ SAMPLES E <br /> am �� S g MATERIAL DESCRIPTION <br /> uJ Sample a ? m O <br /> ' <br /> 0 V Number �n m U m E 0 a Surface Conditions Concrete sidewalk <br /> 5 inches of concrete <br /> 1 GRAVELLY CLAY(CL) <br /> dark brown with some black mottling near 3 feet, stiff, moist, 25-35 percent <br /> ' 2 CL angular gravel,slight hydrocarbon odor, FILL <br /> 3 721 <br /> 72 CLAYEY SAND(SC) <br /> 4 brown, loose,wet, <5 percent gravel,30 to 50 percent fines,fine to medium sand, <br /> ' slight odor <br /> 5 00 SC <br /> 6- <br /> 7— <br /> 7 241 00 <br /> 24 CLAY(CL) <br /> g brown,medium stiff, moist, medium plasticity, <10 percent fine sand,trace <br /> CL organics <br /> 9 <br /> 10 481 <br /> 48 CLAY to CLAYEY SAND(CL-SC) <br /> 11 CL- brown,medium stiff or loose,fine to medium sand,alternating layers of CUSC as <br /> ' SC described above,gradational contacts between CL and SC layers, no odor <br /> 12- <br /> 13- <br /> 14- <br /> 16- <br /> 17- <br /> 18- <br /> 19- <br /> 20- <br /> 21- <br /> 22- <br /> 23- <br /> 24- <br /> 25- <br /> 26— <br /> R <br /> 213141617181920212223242528R 27 <br /> c� <br /> 28 <br /> a 29 <br /> 30 <br /> ' 0 Hand augered to 6 feet <br /> Boring terminated 12 0 feet TIewkirW &Rollo <br /> Bonng backfilled with cement grout <br /> LU <br /> Temporary 1-Inch PVC screen from 7 to 12 feet Protect No Fure <br /> ' W 3577 01 A-20 <br />