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Project: ARCO Station # 760 Log of Monitoring Well: <br /> Locatior_ 225 S Cherokee Ln,Lodi,CA Project Number 38466394 B-27 <br /> Dates Drilled 3/23/04 Total Depth 65 feet Borehole Name <br /> nEQ&Wg Contractor watermark Drilling Well Construction Date Logged By Matt Farris <br /> ole Diameter 6 518 inch Casing Diameter Casing Type Checked By Vernon Elarth R G <br /> Drilling Method Hollow Stem Auger Screen Interval Slot Size Sampling Method Split spoon <br /> Comments Drilled at base of tree approz 150 feet from SW corner of intersection <br /> 4 <br /> w0— <br /> U <br /> ff <br /> 8 <br /> CJf <br /> LITHOLOGY DESCRIPTION WELL CONSTRUCTION <br /> 0 Borehole backfilled with 0 <br /> Grass <br /> bentonite cement grout from <br /> Silty Sand(SM) Dark brown fine to medium grinned sand <br /> total depth to surface <br /> 30 40%silt up to 20%organic detritus moist <br /> 5 5 <br /> 10 5016 0 Yellowish brown very dense 10 <br /> i <br /> 15 15 <br /> 20 5014 0 Sand with silt and gravel(SP) Yellowish brown fine to 20 <br /> medium grained sand up to 25%silt approximately 10%tine <br /> to medium gravel moist very dense <br /> 25 25 <br /> Light olive brown medium to coarse grain sand approximately <br /> 15%gravel damp <br /> 30 80110 0 Yellow fine to medium grained sand trace coarse grained sand 30 <br /> trace silt no gravel moist very dense <br /> 35 35 <br /> 40 75 0 Silt(ML) Gray non plastic trace very fine grained sand minor 40 <br /> • iron oxide staiiung moist hard <br /> UM2870 Gateway Oaks Dr Ste 300 <br /> Sacramento CA 95833 <br /> 916-6792000 <br />