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rf I <br /> Wright Environmental Services, Inc., Tracy, CA Exploratory Boring Log <br /> Project No 4090 Boring/Well No MW-9 Well Installed 2' dia Sch 40 PVC <br /> Client Mr Ed's Muffler Date Drilled July 23, 1997 Total Depth 17'Casing Depth ' <br /> Location 595 E 11th St , Tracy,CA Logger CMP Screen Length and Size 10' of 0 020" <br /> Drilling Method 8" OD Hollowstem Top of Sand Pack 5' Sand Size 2112 <br /> Permit. SR#013082 (on Tracy High lot) Top Bentonite 4' Cement Grout Seal 4' to 0 5' <br /> Water Levels 1 st Enc 9 5'+ 0 8 20 am Surface vault box, Casing Elev 48 28 MSL <br /> Static not measured <br /> Sample Blow I Depth Borehole <br /> No OV Count ca (ft) Lithology Log Completion <br /> Cn <br /> Gravel Fill <br /> CL - Silty CLAY, very dark grayish brown 10YR3/2, low •"�" <br /> plasticity, v f sand 10% dissem , firm, damp <br /> 5 <br /> MW-9-1 - push Same as above, damp <br /> SC-CL - Clayey SAND to Sandy CLAY, stained gray, faint odor, <br /> 1 0 sand 40-60%, saturated, clay 40-60% damp to moist, massive <br /> Mw 9- _ 9 overall, rare rootholes, rootholes wet, rare caliche, stiff <br /> 15 SP - SAND varigated, fine grained, 90%, clay/silt 10% and <br /> Mw-9- _ 1 0 dissem , massive, saturated, locally very clean, med dense, <br /> saturated, ream to 17 feet <br /> Bottom of Boring = 17 feet <br /> Reviewed by RGICEG <br />