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C <br /> Wright Environmental Services, Inc., CA Exploratory Boring Log <br /> Project No. 4669 Boring/Well No. B-3 Well Installed: No <br /> Client: M&M Builders Date Drilled: March 17, 2000 Total Depth: 20' <br /> \,.,, Location: 8111 W. 11th St., Tracy, CA Logger: CMP Cement Grout Seal: 20' to surface <br /> Drilling Method: 3" OD GeoProbe/8"OD Hollowstem Auger <br /> Permit: PHS EHD 0021743 <br /> Water Levels: 1st Enc: 12'± @13:30 Static: 9.51' @13:51 <br /> Sample Blow a Depth Borehole <br /> No. PID Count m (ft) Lithology Log Completion <br /> U) <br /> Road base - Gravelly SAND, gray dense, damp. <br /> grab <br /> B-3-1 0push 5 CL - Sandy CLAY, gray 7.5YRN5/, low plasticity, f. sand 40%, <br /> ®s firm, damp. <br /> 1 <br /> B-3-2 0ush Interbedded CL-ML - Clayey SILT to Silty CLAY and Clayey SAND. <br /> @101 P <br /> yellowish brown 10YR5/8, clay low plasticity and very moist, <br /> sand f. med. 40-60%, massive, med. dense, saturated by 12 <br /> feet; becomes more clayey at 12 feet. <br /> B-3-3 0 push 1 5 Same as above, med. dense, saturated, then contact to underlying <br /> t 16' <br /> SM-SP - Silty SAND to SAND, yellowish brown 10YR5/4, f. <br /> sand 80-95%, thin silt interbeds 0.5 to 1.0 inch thick, local <br /> cob web caliche, med dense and saturated at 16 feet.; <br /> @20 0 push becomes very dense at 20 feet, driller calls near refusal. <br /> 20 <br /> Bottom of Boring = 20 feet <br /> Reviewed by RG/CEG <br />