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5 <br /> Conestoga-Rover:. ssociates BORING/1IIIELL 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 BORINGfWELL NAME MWA <br /> JOB/SITE NAME Former Shell Pipelines-Mountain House,NBH B DRILLING STARTED 04-Sep-09 <br /> LOCATION Tracy,California DRILLING COMPLETED 11-Seo-09 <br /> PROJECT NUMBER 060222 WELL DEVELOPMENT DATE(YIELD) 25-Sep-09(30.0 gallons) <br /> DRILLER Gregg Drilling GROUND SURFACE ELEVATION 112.15 ft above msl <br /> DRILLING METHOD Hollow-stem auger TOP OF CASING ELEVATION 113.72 ft above msl <br /> BORING DIAMETER 8" SCREENED INTERVAL 23 to 38 fbq <br /> LOGGED BY C.Rodriguez DEPTH TO WATER(First Encountered) 28.0 ft(11-Sep-09) Q <br /> REVIEWED BY J.Gaarder DEPTH TO WATER(Static) 28.83 ft(30-Sep-09) 1 <br /> REMARKS _ Air Knifed to 5 fbg. Above ground construction consisting of a 2 ft Stovepipe <br /> CL <br /> = Utp <br /> a 0 Z a H EL' ¢O SOIL DESCRIPTION 1¢= WELL DIAGRAM <br /> M 0 < w 2E X p = C7J Ow <br /> UW <br /> SILT with sand(ML);brown(10YR 4/3);dry;10%Clay, omp e e wi <br /> 75%silt,15%fine-grained sand;low plasticity;dirt surface 2'tall stovepipe. <br /> ML with weeds and shrubs. <br /> 0.0 e 5 5.0 <br /> SAND(SP);light brownish gray(10YR 6/2);dry,5%silt, <br /> 9 95%fine-grained sand;high permeability. <br /> SP <br /> 0.0 s @ 8.5'-dry;100%fine-grained sand;high permeability. <br /> 10— Portland Type 11 <br /> 11.5 <br /> Sandy SILT(ML). <br /> @ 13.5'-light brownish gray(10YR 6/2);dry;5%clay, <br /> a 16 15 65%sill,30%fine-grained sand;medium plasticity. <br /> e <br /> F ML <br /> a 0.0 ;° SILT(ML);light brownish gray(10YR 6/2);dry to moist; <br /> o <br /> 10 20 5%clay,85%silt,10%fine-grained sand;low Bentonite Seal <br /> permeability. <br /> a 21.5 <br /> m SAND(SP). Monterey Sand <br /> z <br /> 92112 <br /> re <br /> N 0.0 zs @ 23.5'-grayish brown(10YR 512);dry; 100%fine to <br /> o " 25 SP medium sand;high permeability. <br /> Lu <br /> Lu <br /> U Q <br /> U <br /> 0.0 ;; @ 285-brown(10YR 4/3);wet;5%silt,95%fine to 1 29.0 <br /> 30— medium- rained sand. <br /> ML SILT with sand(MLI;brown(10YR 4/3);wet;5%clay, 2'-diam.,o.ozo~ <br /> 80`Yo silt 15%fine rained sand. 31.5 slotted Schedule <br /> N Silty SAND(SM). 40 PVC <br /> 0 <br /> 0.0 9 SM @ 33.5'-dark grayish brown(10YR 4/2);wet;20%silt, <br /> c/ 13 35 80%fine-grained sand;high permeability. <br /> W @ 34'-25%silt,75%fine-grained sand. <br /> 0.0 n 37.0 <br /> 9 ML SILT(ML):brown(10YR 5/3);moist to wet 20%clay, 38.0 <br /> 80%silt-low to medium lastici •low ermeabili <br /> 0 <br /> 0_ 40 Bottom of <br /> 0 <br /> Boring @ 38 ft <br /> a <br /> O <br /> O <br /> J <br /> J <br /> 45 <br /> PAGE f OF i <br />