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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 /> tient Mr Ed's Muffler Date Drilled July 23, 1997 Total Depth 17' Casing Depth ' <br /> canon 595 E 11th St , Tracy,CA Logger CMP Screen Length and Size 10' of 0 020' <br /> nllmg Method 8' OD Hollowstem Top of Sand Pack 5' Sand Size 2/12 <br /> Permit: SR#013082 Top Bentonite 4' Cement Grout Seal 4' to 0 5' <br /> Water Levels 1st Enc 9 5'+ ® 8 20 am Surface vault box, Casing Elev 48 28 MSL <br /> Static not measured <br /> Sample Blow a Depth Borehole <br /> No OV Count CO (ft) Lithology Log Completion <br /> Gravel Fill <br /> CL - Silty CLAY, very dark grayish brown 10YR3/2, low •�•h <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 /> 10 sand 40-60%, saturated, clay 40-60% damp to moist, massive <br /> Mw 9-^d 9 overall, rare rootholes, rootholes wet, rare caliche, stiff <br /> 1 5 SP - SAND vangated, fine grained, 90%, clay/silt 10% and <br /> Mw s _ 10 dissem , massive, saturated, locally very clean, med dense, <br /> saturated ream to 17 feet <br /> Bottom of Boring = 17 feet <br /> I <br /> Reviewed by RG/CEG <br />