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Conestoga-Rovers&Associates BORING/WELL LOG <br /> 19449 Riverside Drive, Suite 230 <br /> r. f Sonoma, CA 95476 <br /> Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORINGMELL NAME MW-13 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH B DRILLING STARTED 01-Sep-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 10-Sep-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 24-Sep-09(30.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 103.06 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 105.94 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVAL 22 to 37 fbq <br /> LOGGED BY C.Rodriguez DEPTH TO WATER(First Encountered) 24.0 ft(08-Sep-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 26.96 ft(30-Sep-09) T <br /> REMARKS Air Knifed to 1 fbq;Water Knifed to 5 fbq.Above ground construction consisting of a 2 ft.Stovepipe. <br /> U) <br /> 0) <br /> CX -M <br /> a Ul <br /> a ¢p SOIL DESCRIPTION z= WELL DIAGRAM <br /> 0 00- <br /> a mO < w = C9 OD <br /> SILT(ML);brown(10YR 4/3);dry;25%clay,70%silt, omp 2'tall stovepipe.e p <br /> 5%fine sand;medium plasticity;block structure;compact; ovepipe. <br /> grassy surface with cracks up to 1 cm in diameter. <br /> 0.4 '7° 5- <br /> @5'-Sandy SILT(ML);olive brown(2.5Y 4/4);dry;soft; <br /> s ML 65%silt,35%fine sand;low plasticity;block structure; <br /> compact. <br /> @8.5'-SILT with Sand(ML);olive brown(2.5Y 4/4); Portland Type]I <br /> 0.0 s 10 dry;10%clay,75%silt, 15%fine sand;low to medium <br /> 13 <br /> plasticity. <br /> @9.5'-Sandy SILT(ML);olive brown(2.5Y 4/4);dry; 12.0 <br /> CD <br /> -- <br /> firm:5%. O o% ilt 5%fine sand lowplasticitl�--�� <br /> 0 <br /> 0 <br /> S2 <br /> 0.0 1 SP-SM SAND with Silt(SP-SM);olive brown(2.5Y 4/4);dry; <br /> o ,z 15 medium dense; 10%silt,90%fine sand. <br /> c� <br /> ¢ -- -------------------------- <br /> 17.0 <br /> LL <br /> W <br /> o SW <br /> 6 SAND(,SW);olive brown(2.5Y 4/3);dry;90%fine to 19.5 Bentonite Seal <br /> CD 16 s coarse sand 10%fine ravel. <br /> 0.0 6 20- SILT with Sand(ML)'olive brown(2.5Y 4/3);dry;loose, <br /> N s 80%silt,20%fine sand;low plasticity. Monterey Sand <br /> N #2/12 <br /> O <br /> ML Sandy SILT(ML);olive brown(2.5Y 4/3);moist;65% <br /> W 0.0 silt,35%fine sand;low plasticity. - <br /> M 25 @24.5'-wet;55%silt,45%fine sand;low plasticity. <br /> 0 <br /> N27.0 <br /> N -- ------------------------- <br /> e Silty SAND(SM);olive brown(2.5Y 4/3);wet;45%silt, <br /> 0 0.0 s SM S5%fine sand. 2^-diam.,0.020^ <br /> N a 30 Slotted Schedule <br /> a @29'-firm. 40 PVC <br /> --- -------------------------- 31.5 <br /> 'W <br /> x <br /> s ML SILT(ML);olive brown(2.5Y 4/3);wet;firm;25%clay, <br /> 0 0.0 z 35- 65%silt, 10%fine sand;medium plasticity;caliche veins. <br /> z <br /> 0 <br /> 0.0 <br /> 37.0 <br /> 0 <br /> a <br /> o Bottom of <br /> 40 Boring @ 37 ft <br /> PAGE 1 OF 1 <br />