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Conestoga-Rovers. isociates BORING/WELL 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 BORING/WELL NAME MW-16 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH B DRILLING STARTED 01-Sep-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 09-Sep-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(30.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 103.19 ft above msl <br /> DRILLING METHOD Hollow-stem auqer TOP OF CASING ELEVATION 105.00 ft above msi <br /> BORING DIAMETER 8" SCREENED INTERVAL 23 to 38 fbq <br /> LOGGED BY C.Rodriguez DEPTH TO WATER(First Encountered) 28.0 ft(09-Sep-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 27.83 ft(3D-Sep-09) 1 <br /> REMARKS Air Knifed to 2.5 fbq;Water Knifed to 5 fbq.Above ground construction consisting of a 2 ft.Stovepipe. <br /> CL O Z nn.. W p SOIL DESCRIPTION ¢= WELL DIAGRAM <br /> Q mp 2 X p <J pa <br /> LL U N W 5 O <br /> SILT(ML);brown(10YR 4/3);dry;15%clay,80%silt, COMPZTed ori <br /> 5%fine sand;low plasticity;block structure;compact; 2'tall stovepipe. <br /> grassy surface with cracks up to 2 cm in diameter. <br /> @1'-20%clay,75%silt,5%fine sand;low to medium <br /> ML plasticity. <br /> 0.0 ;i 5 @5'-yellowish brown(10YR 5/4);hard;100°x6 silt. <br /> 16 <br /> ___ 7.5 <br /> SAND ISPI;yellowish brown(10YR 514);dry,medium <br /> dense;5%silt,95%fine to medium sand. <br /> 0.0 isPortland Type II <br /> Ie <br /> 10— SP <br /> 12.0 <br /> ----------------------0 <br /> 0.0 192 @14'-SILT(MLI;brown(10YR 5/3);dry;hard;10% <br /> r u 15 clay,90%silt;low plasticity. <br /> 0 <br /> ML <br /> D <br /> LL <br /> D <br /> 0.0 ;; @19'-moist. <br /> f e 20 Bentonite Seat <br /> M <br /> X <br /> N — _ —_______________ _°__---- 22.0 Monterey Sand <br /> N Silty SAND(SM);brown(1 OYR 4/3);moist;30%silt, 82/12 <br /> 0 SM 70%fine to medium sand. 24.0 <br /> d0.0 ;; SILT;brown(10YR 5/3);moist; 10%clay,90%silt;low <br /> W ,° 25 plasticity. <br /> i <br /> N <br /> N <br /> O <br /> `B e <br /> 0 0.0 ,i 30 @29'-moist to wet. <br /> y 2'-diam.,0.020" <br /> e ML Slotted Schedule <br /> x 40 PVC <br /> y <br /> u <br /> = 1D <br /> N <br /> 0.D ie @34'-Sandy SILT(ML);moist to wet,hard;5%clay, <br /> 0 35 65%silt,30%fine to medium sand;low plasticity. <br /> z <br /> 0 <br /> y <br /> 0.0 ;i @37'-SILT(ML);moist;hard;10°�clay,90%silt low 38.0 <br /> 0 'g ­\Plaslicity. <br /> a <br /> 40 Bottom of <br /> Boring @ IR ft <br /> PAGE f OF 1 <br />