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f <br /> 0 <br /> Wright Environmental Services, Inc., CA Exploratory Boring Log <br /> Project No. 4669 Boring/Well No. B-2 Well Installed: No <br /> Client: M&M Builders Date Drilled: March 17, 2000 Total Depth: 26.5' <br /> Location: 8111 W. 11th St., Tracy, CA Logger: CMP Cement Grout Seal: 26.5' to surface <br /> Drilling Method: 3" OD GeoProbe/8"OD Hollowstem Auger <br /> Permit: PHS EHD 0021743 <br /> Water Levels: 1st Enc: 12'± @ 11:56 Static: 8.69 @ 12:17 <br /> N <br /> Sample Blow a Depth Borehole <br /> No. PID Count cz (ft) Lithology LogCn Completion <br /> Concrete Pavement <br /> Pea Gravel, UST backfill, damp. <br /> B-2 <br /> ®5' NR push Same as above, backfill, damp. <br /> 5 <br /> Sand mixed with pea gravel, backfill, weak odor at 8 to 10 feet. <br /> Driller calls change near 10 feet. <br /> 011 s, 6 push 10 ML-CL - Clayey SILT to Silty CLAY, yellowish brown 10YR5/6, <br /> low plasticity, vf. f sand 20-30%, crudely bedded, firm, <br /> damp. <br /> 15 <br /> 3-23 <br /> 016.5' 1 push SM - Silty SAND, yellowish brown 10YR5/6, non-plastic, f. to <br /> med. sand 85%, fines 15%, crudely bedded, med. dense, <br /> saturated. <br /> 20 SP - SAND, yellowish brown 10YR5/6, f. sand 95%, massive, <br /> B-2-4 <br /> 2 5 <br /> 1 ' 0 push flows from 18 to 21 feet, med. dense, lost sample, shoe <br /> recovery only. <br /> Hole flows to about 25 feet. <br /> 25 <br /> B-2-5 <br /> ®26.5' 0 push ML-CL - Sandy SILT to Sandy CLAY, yellowish brown 10YR5/5, <br /> low plasticity, crudely bedded, caliche, firm to stiff, damp. <br /> Bottom of Boring = 26.5 feet <br /> Reviewed by RG/CEG <br />