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PROJECT 541 WEST GRANT LINE ROAD Log of Boring TR-12 <br /> ' Tracy, California PAGE 1 OF 1 <br /> Boring location See Site Plan, Figure 3 Logged by R Richards <br /> Date started 9123103 1 Date finished 9123103 <br /> ' Drilling method Geoprobe Model 5400 Mounted on Bobcat <br /> Hammer weight/drop --- I Hammer type --- <br /> Sampler 2-inch-diameter split barrel continuous core <br /> ' SAMPLES p <br /> > <br /> CL 2 <br /> MATERIAL DESCRIPTION <br /> L w Sample n o y in O <br /> 0 Number W m V <br /> ' v Surface Conditions Reinforced concrete pavement <br /> TR 12-So * 3 inches of reinforced concrete <br /> SANDY GRAVEL with CLAY(GW) <br /> GW brown,dense,dry, moderately graded,20-25 percent fine-grained sand, <10 <br /> 2 361 percent fines, no odor, FILL <br /> 3 48 <br /> CLAY(CL) <br /> 4 brown,stiff,dry, slightly plastic,<10 percent fine-grained sand, no odor <br /> ' 4° CL <br /> 5 <br /> 6 481 <br /> 48 SILT(ML) <br /> ' 7 ML brown, soft,moist, non-plastic,e10 percent fine-grained sand,moderate <br /> hydrocarbon odor <br /> 8 CLAY(CL) <br /> 9 gray-brown, stiff,wet, slightly plastic,<10 percent fine-grained sand,black <br /> ' staining and strong hydrocarbon odor between 9 to 11 feet <br /> 1 D 481 380 CL <br /> 11 <br /> t � 12 <br /> 13 <br /> ' 14 <br /> 15 <br /> ' 1 <br /> 176 <br /> 18- <br /> 19- <br /> 20- <br /> 21- <br /> 22- <br /> 21- <br /> 24- <br /> 25— <br /> Q <br /> 819202122232425 <br /> 26 <br /> C" <br /> d 27- <br /> 28- <br /> 29— <br /> z <br /> 72829z <br /> W 30 <br /> p Bonng terminated at 42 0 teat <br /> 11: T��O��O <br /> Bonng backfilled with cement grout <br /> Temporary 1 inch PVC screen from 7 to 12 feet <br /> LU Project No Figure <br /> 3577 01 A-12 <br />