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Wright Environmental Services, Inc., Tracy, CA Exploratory Boring Log <br /> Project No.4669 Boring/Well No. MW-2 Well Installed: 2" dia. Sch 40 PVC <br /> Client: M&M Builders Date Drilled: Aug. 28, 2001 Total Depth: 25' Casing Depth: 25' <br /> Location: 8111 E. 11th St., Tracy, CA Logger: CMP Screen Length and Size: 15' of 0.020" <br /> ""'Drilling Method: 8" OD Hollowstem Auger Top of Sand Pack: 8' Sand Size: 2/12 <br /> Permit: PHS/EHD #0026404 Top Bentonite: 7' Cement Grout Seal: 7' to 0.5' <br /> Water Levels: 1st Enc: 9.0' @ 10:23 Static: NM Surface vault box; Casing Elev. 45.41' MSL <br /> a) <br /> Sample Blow a Depth Borehole <br /> No. OV Count cca (ft) Lithology Log Completion <br /> Asphalt Pavement <br /> CL - Sandy CLAY, dark yellowish brown 10YR4/4, low plasticity, <br /> f. sand 45%, firm, damp. <br /> MW-2-1 push <br /> �s 5 Same as above, damp. <br /> MW-2- <br /> 010, 18 <br /> 10 <br /> CL - Sandy CLAY, brown 10YR5/3, low plasticity, f. sand/clay <br /> variable 50-50%, local thin beds of sand yield water, very stiff, <br /> staurated by 10 feet. <br /> MW-2- <br /> @�s Push 15 <br /> SC - Clayey SAND, brown 10YR5/3, low plasticity, f. sand 60%, <br /> massive, faint bedding, med. dense, saturated below 12 feet, <br /> yields water slowly. <br /> MW-2- <br /> e20' push 2 <br /> SP - SAND, gray 10YR5/1, fines<5%, f. sand 95%, massive, <br /> loose, saturated, appears to flow. <br /> RTZ <br /> MW-2- <br /> e25' push U= 2.5 CL - Sandy CLAY, brown 10YR4/3, low plasticity, massive, <br /> �f. sand 40%, stiff, damp. <br /> Bottom of Boring = 25 feet <br /> Reviewed by RG/CEG <br />