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Conestoga-Rovers&Associates 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 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-Sep-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 auger 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 ground construction consisting of a 2 ft.Stovepipe. <br /> c� H U ~ R <br /> o m O a- x w to <OJ SOIL DESCRIPTION z? WELL DIAGRAM <br /> a rJ < w c9 wo <br /> SILT(ML);brown(10YR 4/3);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 5/3);dry;90%silt, 10%fine-grained 5.0 <br /> s 5 sand'low plasticity;low permeability. <br /> 0.0 is Silty SAND(SM);brown(10YR 5/3);dry;30%silt,70% <br /> fine to medium-grained sand. <br /> 0.0 15 SM Portland Type II <br /> 1e 10 @ 9'-medium to high permeability. <br /> __ _________ ______ ____ 12.5 <br /> o SILT(ML);brown(10YR 5/3);dry;5%clay,90%silt,5% <br /> _ 18 fine to medium-grained sand;low permeability. <br /> 2. ML <br /> 0 15 <br /> cs <br /> ¢ -- -------------------------- <br /> 17.0 <br /> LL <br /> W <br /> O <br /> 'a 0.0 1 SP SAND(SP);grayish brown(10YR 5/2);dry;5%silt,95% Bentonite Seal <br /> M 20 fine to medium-grained sand;high permeability. <br /> x <br /> z <br /> N <br /> N 22.0 : <br /> O <br /> O <br /> W 0.0 1u' SILT(ML);brown(10YR 5/3);dry to moist; 10%clay, <br /> 2525 ML 85%silt,5%fine to medium-grained sand; low plasticity; <br /> o low permeability. <br /> N -- • ------------------------- 27.0 :•. : •. <br /> CIS 0 0.0 o Montere Sand <br /> #2/12 y <br /> 0 1Silty SAND(SM);brown(10YR 5/3);wet;25%silt,75%13 30 SM fine to medium-grained sand;medium permeability. 2 diam.,0.020^ <br /> ¢ Slotted Schedule <br /> x <br /> � 40 PVC <br /> W 32.5 <br /> x <br /> 0z 0.0 ,so 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 /> n. <br /> U' <br /> 0 <br /> Bottom of <br /> 40 Boring @ 37 ft <br /> PAGE 1 OF 1 <br />