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The San Joaquin Company Inc. Monitoring Well Log <br /> WELL No.: MW-12A Project: Former f=ueling Station Project No.: 9902.016 <br /> Carl B.Navarra <br /> Owner: Location: 7500 W.Eleventh Street,Tracy, California <br /> Top of Casing Elevation: 48.98 ft. Surface Elevation: 49.38 ft. Depth to Water: 9.09 ft. <br /> Date Installed: 03/28/02 Total depth of Boring: 36 ft. Boring Diameter: g <br /> in. <br /> Well Casing Diameter: 2 in. Total depth of well: 35 ft. Casing Material: PVC <br /> Drilling Company: Spectrum Ex loration Inc. Drilling Method: Open Stem Auger <br /> Driller: Dave Gonzalez Logged By: Dai Watkins <br /> NOTE:Uniform Soil Classifications are from field observations only without data from laboratory. <br /> Dep(Feet) Sample Graphic Description Well Construction <br /> 30 ML Light grey,Sandy SILT(ML)-very wet, No.2116 Monterey sand filter pack <br /> very loose <br /> MW12A No odor <br /> 32 31.5 <br /> Light brown,soft Silty CLAY(CL)- 2-inch diameter PVC well casing <br /> increasing stiffness with depth with 0.10 inch aperature machine-cut slots <br /> 34 CL <br /> MW12A S Light brown SiltySAND SP veryloose, Conical PVC casing cap <br /> ^ 36 35.s very wet flowin ( ) <br /> No odor <br /> 38 TD Boring @ 36 feet <br /> _ 40 - <br /> 42 - <br /> 44 - <br /> 4§ <br /> 0424446 <br /> � - 48 — <br /> _ 50 - <br /> 52 - <br /> - 54 — <br /> _ 56 - <br /> 58 <br /> 4$5052545658 <br /> 60 <br /> Page 2 of 2 <br />