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WELL CONSTRUCTION LITHOLOGY SAMPLE DATA <br /> Depth, Graphic Core <br /> feet Cont'd.... Log Description Recovery <br /> _y— <br /> 40 _ <br /> CENTRALIZER - - <br /> (STAINLESS — <br /> STEED <br /> SAND(SM),light brown,well sorted coarse grained. <br /> bumpy dtllling,lncrease in drill rate. <br /> 45 <br /> 45 <br /> t3 LONESTAR <br /> SAND <br /> SAND(SW),moderately well sorted,medium to <br /> coarse grained with common subrounded fine <br /> gravel,bumpy drilling <br /> SAND <br /> (tlrlllin well <br /> eaii m to coarse grained, 50 <br /> W bumpy g increase in <br /> CLAYEY SANDY SILT(ML),light brown,soft low LOG CUTTINGS <br /> plasticity common fine to medium sand,decrease in <br /> 14-INCH — — rate,smooth drilling. <br /> DIAMETER —_— —_ <br /> BOREHOLE <br /> 55 — — 55 <br /> CENTRALIZER <br /> SAND(SM).light brown,medium grained,well sorted, 60 <br /> (STAINLESS Increase In rate. <br /> STEED <br /> &INCH = = CLAYEY SANDY SILT(ML),light brown,soft,low <br /> DIAMETER ——— plasticity,common fine to medium sand.smooth <br /> PVC SCH.80 ——— dfili ng. <br /> SCREEN — — <br /> (0.MNNCH <br /> 55 SLOT) <br /> ]-INC —— — <br /> DIAMETER <br /> SCH.40 PVC — <br /> SOUNDING TUBE <br /> SCREEN <br /> (0.020-INCH — <br /> SLOT) _ _ 70 <br /> 70 <br /> EXPLANATION <br /> Welt Permit No. 015078 ® Clay <br /> Date well drilled: April 14,1998 <br /> Drilling company: Weeks Drilling&Pump F-71Silt <br /> Driller: Rob Schroeder <br /> Sand <br /> Sampling Method: Cuttings <br /> LFR Geologist: Dan Foster I <br /> LL:J <br /> J Gravel <br /> Approved by: ! k� �l� i'� r 'f: <br /> CONSTRUCTION AND LITHOLOGY FOR WELL GEW-002A (page 2 of <br /> 01 L F R Lincoln Center,Stockton, California <br /> LEVINE•FR ICKE <br /> 6751L107.CDR 121498 <br />