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Conestoga-Rovers&Associates BORINGIWELL 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-Sep-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 24-Sep-09(20.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 116.28 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 fbq <br /> LOGGED BY C.Rodriguez DEPTH TO WATER(First Encountered) 29.0 ft(14-Sep-09) <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 30.59 ft(30-Sep-09) 1 <br /> REMARKS Air Knifed to 5 fbq.Above ground construction consisting of a 2 ft.Stovepipe. <br /> f- U <br /> � <br /> a W ai aQ OSOIL DESCRIPTION = WELL DIAGRAM <br /> m00 W o � <br /> Q �J pa <br /> < U U W <br /> O <br /> SILT(ML);brown(10YR 4/3);dry;5%clay,85%silt, Completed will <br /> 10%fine-grained sand; low plasticity;grassy surface. 2'tall stovepipe. <br /> 0.2 s 5- ML Sandy SILT(ML);olive brown(2.5Y 4/4);dry;55%silt, <br /> 12 45%fine-grained sand; low plasticity;blocky structure. <br /> 0.0 e @ 8.5'-10%clay,55%silt,35%fine-grained sand;low to <br /> 18 10- medium plasticity;blocky structure,caliche veins. Portland Type II <br /> -- -------------------------- 11.5 <br /> SM <br /> m 0.0 a Silty SAND(SM);dark olive brown(2.5Y 5/3); 15%silt, 14.5 <br /> o 19 <br /> 15- 85%fine- rained sand. <br /> ML SILT with sand(ML);dark olive brown(2.5Y 5/3);dry; <br /> o -- <br /> 10%clay,70%silt,20%fine-grained sand;low plasticity; 16.8 <br /> blocker structure,compact.-------------l r <br /> SP-SM <br /> 0.0 19 SAND with silt(SP-SM);dark olive brown(2.5Y 5/3);dry; 19.5 <br /> 0 17 20 SW 10avel silt,80%fine to medium-grained sand, 10%fine Bentonite Seal <br /> SAND with-gravel(SW);dark olive brown(2.5Y 5/3); 21.8 <br /> M \ moist,5%silt,75%fine to coarse-grained sand,20%fine Monterey Sand <br /> gra <br /> z \gravel- vel rounded and subrounded up to iamete <br /> ' -dr./ #2/12 <br /> N 0.0 i Sandy SILT(ML);dark olive brown(2.5Y 5/3);5%clay, <br /> 0 21 25 ML 50%silt,45%fine-grained sand; low plasticity. <br /> SILT(ML);dark olive brown(2.5Y 5/3);20%clay,70% <br /> silt, 10%fine-grained sand;medium plasticity;blocky <br /> 27.0 <br /> --:.:• .• structurebutter�ftextureicalicheveins_-----_-�- <br /> 0.0 Silty SAND(SM);dark olive brown(2.5Y 5/3);moist; Q <br /> N 30 10%clay,35%silt,55%fine-grained sand. <br /> g SM 1 2"-diam.,0.020" <br /> d Slotted Schedule <br /> N 40 PVC - <br /> 0 <br /> a 0.0 0 @ 33'-olive brown(2.5Y 4/3);wet; 15%silt,85% 34.0 <br /> 12 <br /> 35 fine- rained sand. <br /> 59 Sandy SILT(ML);olive brown(2.5Y 4/3);dry to moist; <br /> = ML 20%clay,50%silt,30%fine-grained sand;medium <br /> 0.0 a plasticity;blocky structure. <br /> 13 SILT with sand(ML);olive brown(2.5Y 4/3);wet,20% 38.5 <br /> o cla 60%silt 20%fine- rained sand low lasticit . <br /> 0 40 Bottom of <br /> 1' Boring @ 38 ft <br /> 0 <br /> a <br /> C7 <br /> O <br /> J <br /> J <br /> J <br /> 45 <br /> PAGE 1 OF 1 <br />