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Drilling Lflg <br /> FLUOR DANIEL GTI4 Soil Boring GP-4 <br /> Project Southland/Pombo66rant Line, Tracy owner The Southland Corporation See Site Map <br /> Location SW corner Pombo Pkwy 6 Grant Line Rd, Tracy CA Prol- No. 020700544 For Boring Location <br /> Surface Elev. Total Hole Depth 20 ft. Diameter 2 in. COMMENT-S: <br /> Top of Casing N/A ft. Water Level Initial 18 ft. Static /1.1 ft. <br /> Screen: Dia N/A in- Length N/A ft. Type/Size N/A in. <br /> Casing: Dia N/A in. Length N/A ft. Type N/A <br /> Fill Material Portland Cement Rig/Core Geoprobe/2in dia. X Oft. core barre <br /> Drill Co. Gre.q_q Drilling Method Direct Push <br /> Driller Dan Cooper Log By David Bean Date 8/5/97 Permit # N/A <br /> Checked By Ed Simonis License No. RG No. 4422 <br /> N <br /> L� of a) o > t0) +o Description <br /> a� ..a a Uo to) 0.0 <br /> v <br /> a)— a a 1= a 0f0J U (Color, Texture, Structure) <br /> (n m T_R j Trace < 10%, Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> -2 <br /> 0 Open grade at surface. <br /> 2 MI <br /> CL <br /> Sandy Clayey SILT (25,30,45): Dark brown-gray, moist, no hydrocarbon <br /> 4 odor. <br /> Grades with light brown mottling. <br /> 6 0 GP4 RL <br /> -6 CL <br /> 8 <br /> Silty fine SAND (30,70): Light brown with light gray discoloration, wet, no <br /> to sM hydrocarbon odor. <br /> 0 GP4 <br /> -10 <br /> Sandy Silty CLAY (f0,30,60): Light brown, moist, no hydrocarbon odor. <br /> 12 CL Static Groundwater Level 8/5/97 <br /> 14 Clayey Sandy SILT (20,20,60): Grayish-brown with dark gray discoloration, <br /> wet, no hydrocarbon odor. <br /> 16 1 GP4 <br /> -16 <br /> ML <br /> 18 Q Groundwater Encountered 8/5/97 <br /> Clayey Sandy SILT (10,20,70): Light brown, wet, no hydrocarbon odor. <br /> 20 -20 Drilled and sampled to 20 feet. All percentages are approximate. <br /> - 22 - <br /> - 24 - <br /> 08/15/1997 1Rhk)0-,kn_e.@ <br /> 22408/15/19971Rhloa-,kne.86 Paae.- 1 of I <br />