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PROJECT 541 WEST GRANT LINE ROAD Log of Boring TR-18 <br /> Tracy, CaliforniaPAGE 1 OF 1 <br /> Boring location See Site Pian, Figure 3 Logged by D Mimes <br /> Date started 9124103 Date finished 9124103 <br /> Drilling method Direct push, geoprobe model 5400 mounted on Bobcat <br /> Hammer weight/drop --- IHammer type --- <br /> Sampler 2-inch-diameter split barrel continuous core <br /> SAMPLES E 0 <br /> m - a S MATERIAL DESCRIPTION <br /> U) R Sample E gS C m m z <br /> Number M m 8 <br /> Surface Conditions Concrete sidewalk <br /> TR 16-so 5 inches of concrete <br /> 1 GW 314 inch-diameter gravel base rock, FILL <br /> 2 SANDY CLAY(CL) <br /> dark brown with black mottling, stiff, moist, moderately plastic, X10 percent gravel, <br /> 3 721 CL 15 to 30 percent fine sand, FILL(?) <br /> 72 <br /> 4 CLAYEY SAND(SC) <br /> ' S brown,wet below 5 feet, X10 percent sub-angular gravel,some clayey zones and <br /> Sc tan clay clods,fine to medium sand,slight hydrocarbon odor <br /> 8 24! <br /> ' 7 24 <br /> SILTY SAND (SM) <br /> 8 7 5 22 SM gray with black mottling,loose, wet,25-45 percent fines,strong hydrocarbon odor <br /> ' CL SANDY CLAY(CL) <br /> brown,stiff,moist to wet, moderately plastic,5-20 percent fine sand, trace <br /> 10 48 SC or anics moderate hydrocarbon odor <br /> =b8rown, <br /> SAND(SC) <br /> 11 t, 10-40 percentfines witfi same clayey zones,fine to medium sand,ocarbon odor <br /> 12 SANDY CLAY(CL) <br /> 13 CL brown,wet, 5-20 percent fine sand,slight hydrocarbon odor <br /> ' 14 421 <br /> 48 <br /> 15 Sc CLAYEY SAND(SC) <br /> 16 CL brown,wet, 10-40 percent fines, slight hydrocarbon odor,angular gradational <br /> conta cts <br /> 17 301 SANDY CLAY(CL) <br /> SC brown wet 5-20 percent fine sand slight h drocarbon odor <br /> 18 36 CLAYEY SAND(SC) <br /> ' CL brown wet 10-40 percent fines slight hydrocarbon odor <br /> 19 SANDY CLAY(CL) <br /> brown wet 5-20 ercent fin sli ht h drocarbon odor <br /> za <br /> 21- <br /> 22- <br /> 23- <br /> 0 <br /> 12z23 <br /> 24- <br /> 25- <br /> 26- <br /> 27- <br /> 28- <br /> 29— <br /> LU <br /> 42526272U29w 3a <br /> 2 <br /> Z <br /> Hand augered to 6 feet <br /> Boring terminated t 19 0 feet Tiva& {e BRO110 <br /> Baring backfilledwith cement grout VI <br /> LU Shallow temporary 1 inch PVC screen from 7 to 12 feet Project No Figure <br /> ' w Deep temporary 1-inch PVC screen from 12$to 17 5 3577 01 <br /> r feet A-18 <br />