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Conestoga-Rovers ssociates <br /> 19449 Riverside Drive,Suite 230 BORING/WELL LOG <br /> vrj Sonoma,CA 95476 <br /> Telephone: 707-935-4850 <br /> Fax: 707-935-6649 <br /> CLIENT NAME Shell Oil Products US BORINGIWELL NAME MW-9 <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH B DRILLING STARTED _02-Sep-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 10-Seo-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 24-Sep-09(30.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 107.53 ft above msl <br /> DRILLING METHOD Hollow-stem auqer TOP OF CASING ELEVATION 110.27 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVAL 22 to 37 fbq <br /> LOGGED BY C.Rodriguez DEPTH TO WATER(First Encountered) 27.0 ft(10-Sep-09) Q <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 27.56 ft(30-Sep-09) 1 <br /> REMARKS Air Knifed to 1.5 fbq:Water knifed to 5 fbq. Above around construction consisting of a 2 ft.Stovepipe. <br /> O U L m <br /> m O � X d a rn < SOIL DESCRIPTION Z M WELL DIAGRAM <br /> a U (7 OIL <br /> U wo <br /> SILT(ML);brown(10YR 413);dry;20%clay,80%silt; Completed with <br /> low to medium plasticity;low permeability. Grassy surface 2'tall stovepipe. <br /> with fine cracks up to 2cm diameter. Silt has blocky <br /> ML structure,compacted. <br /> @ 4'-brown(10YR 513);dry.90%silt,10%fine-grained 5.0 <br /> 0.0 ti 5 sand low lastici low ermeabili <br /> ,5 Silty SAND(SM);brown(10YR 5/3);dry;30%silt,70% <br /> fine to medium-grained sand. <br /> 0.0 13 <br /> SM Portland Type I <br /> to 1 @ 9'-medium to high permeability. <br /> __ _________ ______ ____ 12.5 <br /> o SIL_ T(ML);brown(10YR 5/3);dry;5%clay,90%silt,5% <br /> _ 12 fine to medium-grained sand;low permeability. <br /> 2° ML <br /> 0 15 <br /> a — -----7-------------------- <br /> 17.0 <br /> LL <br /> O <br /> 20.0 15 SAND(SP);grayish brown(10YR 5/2);dry;5%silt,95% Bentonite Seal <br /> uSP <br /> 20 fine to medium-grained sand;high permeability. <br /> x <br /> N <br /> N <br /> N22.0 <br /> 0 0.0 22 SILT(ML);brown(10YR 513);dry to moist; 10%clay, <br /> m 2525 ML 85%silt,5%fine to medium-grained sand;low plasticity; <br /> g low permeability. <br /> N27.0 <br /> ------------------------- <br /> O - <br /> terey <br /> a 0.0 in Silty SAND(SM);brown(10YR 513);wet;25%silt,75% ayl22 Sand�� 30 SM fine to medium grained sand;medium permeability. ream.,0.020" <br /> Slotted Schedule <br /> 40 PVC <br /> W 32.5 <br /> s <br /> N <br /> 0 0.0 iu 35 ML SILT(ML);brown(10YR 5/3);moist; 10%clay,85%silt, <br /> " 5%fine-grained sand;low plasticity;low permeability. <br /> 0 37.0 <br /> a <br /> U' <br /> Bottom of <br /> 40 Boring @ 37 ft <br /> PAGE 1 OF f <br />