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Conestoga-Rovers sociates 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-2 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House NBH B DRILLING STARTED 04-Sep-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 14-Seo-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 24-Sep-09(20.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 11528 ft above msl <br /> DRILLING METHOD _ Hollow-stem auger TOP OF CASING ELEVATION 118.32 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVAL 23 to 38 tbq <br /> LOGGED BY C.Rodriguez DEPTH TO WATER(First Encountered) 29.0 ft(14-Sep-09) �Z <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 30.59 ft(30-Sep-09) 1 <br /> REMARKS Air Knifed to 5 fbg Above ground construction consisting of a 2 ft Stovepipe <br /> ECD O ~ S r1J U ~ <br /> m 0 X W N Q_j SOIL DESCRIPTION Z? WELL DIAGRAM <br /> a v < W UW <br /> 0 <br /> SIL_ T(ML);brown(10YR 4/3);dry;5%clay,85%silt, Completed with <br /> 10%fine-grained sand;low plasticity;grassy surface. 2'tall stovepipe. <br /> 0.2 a 5- <br /> ML Sandy SILT(ML);olive brown(2.5Y 4/4);dry;55%sift, <br /> t2 45%fine-grained sand;low plasticity;blocky structure. <br /> 0.0 ; @ 8.5'-10%clay,55%silt,35%fine-grained sand;low to <br /> 1II 10 medium plasticity;blocky structure,caliche veins. Portland Type tl <br /> -- -------------------------- 11.5 <br /> SM <br /> e <br /> 0.0 ;s Silty SAND(SM):dark olive brown(2.5Y 5/3);15%silt, 14.5 <br /> 15 85%fine- rained sand. <br /> ML SILTwith sand(MLI;dark olive brown(2.5Y 5/3);dry; <br /> -- 10%clay,70%silt,20%fine-grained sand;low plasticity; 16.8 <br /> blockystructuree,compact.------------- <br /> SP-SM <br /> 12 <br /> < 0 0 +9 SAND with silt(SP-SM);dark olive brown(2.5Y 513);dry; 19.5 <br /> o '� 20 10%silt,80%fine to medium-grained sand,10%fine Bentonite Seat <br /> SW ravel. <br /> SAND with gravel(SW);dark olive brown(2.5Y 5/3); 21.8 <br /> _ \ moist,5%silt,75%fine to coarse-grained sand,20%fine /^ Monterey Sand <br /> z \g-ravel�•gravel rounded and subrounded uo <br /> k oto 1'-dim <br /> aeter./ �#2J1212 <br /> N 0.0 Z� ML Sandy SILT(ML);darlive brown(2.5Y 5/3);5%clay, <br /> 25 50%silt,45%fine-grained sand;low plasticity. <br /> SILT ML;dark olive brown(2.5Y 5/3);20%clay,70% <br /> d - silt,10%fine-grained sand;medium plasticity;blocky 27.0 <br /> W ,structure buttey texture caliche veins_ <br /> ----- <br /> 0.0 Silty SAND(SM);dark olive brown(2.5Y 5/3);moist; <br /> 030 SM 10%clay,35%silt,55%fine-grained sand. _ <br /> 2"•diam.,0.020" <br /> Slotted Schedule <br /> g 40 PVC <br /> N ' 34.0 <br /> 0.0 12 @ 33'-olive brown(2.5Y 4/3);wet 15%silt,85% <br /> 35 fine rained sand. <br /> Sand SILT(MIL);olive brown(2.5Y 4!3);dry to moist; <br /> = ML 20%clay,50%silt,30%fine-grained sand;medium <br /> T 0.0 a plasticity;blocky structure. <br /> a 1] SILTwith sand(MLI;olive brown(2.5Y 4/3);wet,20% 38.5 <br /> o cla 60%silt 20%fine rained sand low lastici <br /> z <br /> 40 <br /> 1n Bottom of <br /> Boring @ 38 ft <br /> 0 <br /> a <br /> U <br /> O <br /> 45 <br /> PAGE 1 OF t <br />