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�- � Conestoga-Rovers sociates BORINGIIIVELL LOG <br /> 19449 Riverside Drive,Suite 230 <br /> ` Sonoma,CA 95476 <br /> Telephone: 707-935 4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BOR)NG/WELL NAME MW-10 <br /> JOB/SfTE NAME Former Shell Pipelines-Mountain House NBH B DRILLING STARTED 03-Seo-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 11-Seo-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(30.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 110.08 ft above mst <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 112.42 ft above msI <br /> BORING DIAMETER 8" SCREENED INTERVAL 22 to 37 fbq <br /> LOGGED BY C.Rodriguez DEPTH TO WATER(First Encountered) 27.0 ft(11-Sep-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 28.49 ft(30-Sep-09) 1 <br /> REMARKS Air Knifed to 1 fbg•Water Knifed to 5 tbg Above ground construction consisting of a 2 ft Stovepipe <br /> E ~ S vi U F <br /> CL �N W Z I = Ua <br /> n _5 Dii H w Q O SOIL DESCRIPTION F¢= WELL DIAGRAM <br /> IL mom CoQZ F- <br /> W O� Ow <br /> UW <br /> SILT(ML);brown(10YR 4/3);dry;25%clay,75%silt; Completed with <br /> medium plasticity;block structure;compact;grassy 2'tall stovepipe. <br /> surface. <br /> @1'-25%clay,70%silt,5%fine gravel. <br /> 2.4 ' Mw•10-5 5 @5'-dark brown(7.5YR 312);dry;hard. <br /> u <br /> m <br /> 8 <br /> @6.5'-hard. <br /> io <br /> zo <br /> o m ML <br /> a 2.6 18 @8 '-hard. <br /> L6 <br /> D <br /> � Portland Type II <br /> z 3.0 ; MW-to-to 10 @10'-firm. <br /> C, e <br /> N <br /> N <br /> @111.25'-Sandy SILT(ML):yellowish brown(10YR <br /> Cl) 5/6);dry;soft;70%silt,30%fine sand;low plasticity. <br /> W e <br /> U 5 <br /> 5 <br /> 0.5 a @13'-Sandy SILT(ML);yellowish brown(1 OYR 516); <br /> s dry;firm;20%clay,60%silt,20%fine sand;low to <br /> i <br /> medium plasticity;block structure. <br /> s - <br /> i <br /> 15.0 t 0.6 9 Mw-tats 15 Silty SAND(SM);yellowish brown(10YR 5/6);dry; <br /> 9 SM medium dense;20%silt,70%fine sand,10%fine gravel <br /> (subrounded and elongated gravel up to 1 inch diameter). <br /> 16.5 <br /> Sandy SILT(ML);yellowish brown(10YR 5/6);dry,firm; <br /> 0.7 sML 5%u clay,50%silt,45%very fine sand;low plasticity. <br /> y. <br /> 9 <br /> 0 <br /> 18.0 <br /> e Silty SAND ISM):yellowish brown(10YR 5/6);dry; <br /> a " sM medium dense;30%silt,70%fine sand. <br /> 19.0 eentonae Seal <br /> o SAND(SP);light olive brown(2.5Y 5/3);5%silt,90% <br /> SP medium sand,5%gravel. <br /> 20 20.0 <br /> Continued Next Page PAGE i OF 2 <br />