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ENVIRONMENTAL COST MANAGEMENT, INC. FIELD BOREHOLE LOG <br /> Managing Cost and Liability <br /> 3525 Hyland Ave, Suite 2000 Costa Mesa, CA 92626 BOREHOLE NO.: M-54C <br /> Tel: (714) 662-2759 • Fax: (714) 662-2758 TOTAL DEPTH: 185 Feet <br /> PROJECT INFORMATION DRILLING INFORMATION <br /> PROJECT: Nestle Ripon DRILLING CO.: Boart Longyear <br /> SITE LOCATION:223 5th St. DRILLER: John Gray <br /> JOB NO.: 2-5-1 RIG TYPE: Rotary Sonic <br /> FIELD GEOLOGIST:Joseph Plummer METHOD OF DRILLING: Rotary Sonic <br /> PROJECT MANAGER: Binayak Archaya SAMPLING METHODS: 6" core barrel (continuous core) <br /> DATES DRILLED: 12/7/09-12/9/09 BOREHOLE DIAMETER: 7" <br /> Water Table Encountered During Drilling = Static Water Level Measured From Surface <br /> 0 c <br /> — U) C� <br /> -a o <br /> = c�i J w OJ U) SOIL DESCRIPTION � <br /> g O Comments w L <br /> w > Q ~ _ D <br /> 0 U) J U <br /> 155 <br /> SM Silty sand,brown 10 YR 5/3,medium stiff,moist. <br /> SP Sand stringer 157-159',fine grained micaceous sand. <br /> 160 Silty sand,brown 10 YR 5/3,medium stiff,moist. <br /> (155-175')Ground water monitoring <br /> SM screen,2-inch Sch40 PVC 0.020 inch <br /> slot size <br /> 165 <br /> Sand,dark grayish brown 10 YR 4/2,loose,moist to <br /> very moist, predominantly fine grained sand with trace <br /> mica. <br /> 170 SP <br /> 175 4"cap at bottom of well. <br /> Clayey silt,light brownish gray 10 YR 6/2,medium stop drilling at 175'bgs on 12/8/09 <br /> stiff, moist,low plasticity fines. <br /> 180 ML <br /> 185 Total depth of boring 185 ft bgs. <br /> Page 5 of 5 <br />