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Total depth of borings 75 Feet Diameter of boring, 10 Inch Date drilled, 8/13Z1992 <br /> Casing diameter, 4 Inch Length, 75 Feet Slot size, 0 02 Inch <br /> Screen diameter, 4 inch Lengths 20 Feet Material types PVC <br /> Drilling Company, Wayne Drilling Co Drillers Richard/Jay <br /> Method Useds Hollow—stem auger California modified split—spoon Field Geologist, Claudio Avila <br /> Signature of Registered Professionals <br /> Registration No., 43139 State, California <br /> MEASURED SAMPLE � P.I.D. USCS DESCRIPTION <br /> WELL <br /> DEPTH NO. m CODE CONST. <br /> 0 l <br /> Asphalt and gravel fill <br /> 2 <br /> II <br /> 4 <br /> S-5 16 pp0 ML Silt Some Fine—grained sand grayish brovn ary non—plastic stiff <br /> 5 . <br /> 8 � <br /> 10 S-10 25 P 0 Clayey sift moderate yellowish brown very s,iff <br /> } <br /> I <br /> 12 <br /> i <br /> i <br /> 14 , <br /> 5-15 38 P 0 Silt light brown, hard <br /> 16 <br /> 18 <br /> I I <br /> LOG OF BORING: B-9/MW-4 PLATE <br /> �r <br /> trVArM ARCO Service Station No. 2130 <br /> nLE No 7906 EI Dorado Street C26 <br /> PROJECT NO. 30003 00 <br /> 0003137A Stockton, California <br /> G <br />