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0 <br /> Wright Environmental Services, Inc., CA Exploratory Boring Log <br /> Project No. 4669 Boring/Well No. B-4 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: 12.5' @15:10 Static: 8.92' <br /> Sample Blow a Depth Borehole <br /> No. PID Count (ft) Lithology Log Completion <br /> Concrete Pavement <br /> CL - Sandy CLAY, yellowish brown 10YR5/4, low plasticity, <br /> f. sand 40%, firm, damp. <br /> B-4-1 0 push 5 Same as above, firm, damp. <br /> @5' <br /> Pushed hard 9 to 10 feet <br /> 1 <br /> @101 0 Push CL - Sandy CLAY, yellowish brown 10YR5/8, low plasticity, <br /> f. sand 20%, hard, damp. <br /> 16'' <br /> @1 <br /> B-4-3 <br /> 0 push 15 SP - SAND, brown 10YR5/3, f. med. sand 95%, contains 2 inch <br /> thick clay bed at 15.5 feet, dense, saturated. <br /> B-4-4 NR push Attempted sample 18-20 feet, borehole flows to 15 feet, no <br /> ®20' sample recovery. <br /> 20 <br /> Bottom of Boring = 20 feet <br /> Reviewed by RG/CEG <br />