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ROY F. WESTON, INC. <br /> BORING LOGS <br /> Soil Boring No.: SB-3 Dates of Drilling: 5/12/99 Geologist: S. Lookingbill <br /> Location: SW portion of property, Drilled Depth: 16 feet Supervisor: B. Clarke, RGA/6627 <br /> Proposed Home Depot Site, Tracy, CA <br /> Client: Home Depot <br /> Project No.: 11526-033-003-0001 <br /> Equipment: Direct Push Rig Contractor: Precision Sampling, Inc. <br /> Drill Rig: XD-3 Driller: Ken Perez <br /> Sampling: 2" Macrocore Barrel Helpers: Michael Flylk <br /> DEPTH BLOW DESCRIPTION OF LITHOLOGY COMMENTS <br /> (feet) COUNTS <br /> 0-5.5 NA ML—Yellowish brown (10YR5/4) FINE SANDY SILT, slightly plastic, Recovery: 1/4 <br /> slightly moist to moist, no odor. <br /> 5.5-12.8 NA CL—Yellowish brown (10YR5/4) SILTY CLAY,trace fine sand, Recovery: 4/5 <br /> moderately to highly plastic, moist, no odor. <br /> 12.8 16 NA ML—Yellowish brown (10YR5/4) FINE SANDY SILT, some dark Recovery: 5/5 <br /> patches, wet, no odor. <br /> END OF SB-3 AT 16 FEET <br /> NOTES: 1. No evident fill observed. <br /> 2. Groundwater encountered approximately 1 2.8 feet bgs. <br /> 3. NA = Not applicable. <br /> 4. Backfilled with bentonite/neat cement grout upon completion. <br />