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Drilling Log <br /> ❑® GROUNDWATER Monitoring Well MW-7 <br /> ❑O❑ TECHNOLOGY • <br /> Chevron/Benjamin Holt Chevron USA Products Co See Site Map <br /> Prolect _ Owner For Boring Location <br /> Location 2905W Benjamin Holt Dr _. Project No 02320-2241 Date drilled 3/3/92 <br /> Surface Elev Total Hole Depth 315 ft Diameter 8r� COMMENTS <br /> Top of Casing Water Level Initial 18 0 ft Static 175 ft <br /> Screen Dia 2 in Length 20 ft Type/Size 0020,n <br /> Casing 018 2 in Length 10 ft Type SCh 40 PVC <br /> Filter Pack Material Lapis Lustre #2/12 Rig/Core Type Mobile B-53/S I t Spoon <br /> Drilling Company Sierra Pacific Method Hollow Stem Auger Permit 0 <br /> Driller Manuel Arquillo Log By Steve Kranyak <br /> Checked By <br /> Ed Simonis License No RG 4422 <br /> T <br /> n ° Description <br /> > L <br /> y - QE R1 'oo ao U <br /> X a Q E m� (Calor, Texture, Structure) <br /> Q`J 0 mK En Trace < 10%, Little 10% to 20%, Some 20% to 35%, And 35% to 50% <br /> i <br /> Bark over brown sdty'sandy-CLAY=(soft=moist=no <br /> hydrocarbon odor) <br /> 2 < < <br /> 4 < ` <br /> < < 0 A s <br /> 10 <br /> fl <br /> B GL <br /> 10 _ l B 10 <br /> 12 <br /> 14 <br /> 12 - <br /> 14 <br /> 2 14 — <br /> 2 C 11 <br /> 14 <br /> 16 15 Brown silty clayey very fine SAND (loose very moist, no <br /> = hydrocarbon odor) <br /> 18 = Encountered water 3/3/92 (1400 hours) <br /> SM <br /> 2O — z <br /> 0 D 12 <br /> 1A <br /> L22 — Brown sandy SILT (soft very moist no hydrocarbon odor) <br /> SM <br /> t 24 — <br /> i <br /> pane 1 of 7 <br /> i1d/f7�/t4A� i,Thlnn—maria9 <br />