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ENVIRONMENTAL COST MANAGEMENT, INC. FIELD BOREHOLE LOG <br /> Managing Cost and Liability <br /> 3525 Hyland Ave, Suite 200• Costa Mesa, CA 92626 BOREHOLE NO.: M-53B <br /> Tel: (714) 662-2759 • Fax: (714) 662-2758 TOTAL DEPTH: 42 Feet <br /> PROJECT INFORMATION DRILLING INFORMATION <br /> PROJECT: Nestle Ripon DRILLING CO.: Gregg Drilling <br /> SITE LOCATION:Stockton Ave. DRILLER: Sean,Ronnie, Louis <br /> JOB NO.: 2-5-1 RIG TYPE: D-12 Auger Rig <br /> FIELD GEOLOGIST:Joey Pace METHOD OF DRILLING: Hollow Stem Auger <br /> PROJECT MANAGER: Binayak Archaya SAMPLING METHODS: Split spoon/ Simulprobe <br /> DATES DRILLED: 12/16/09 - 12/17/09 BOREHOLE DIAMETER: 8" <br /> Water Table Encountered During Drilling = Static Water Level Measured From Surface <br /> 0 <br /> = g <br /> Z <br /> -a U oW �w U) SOIL DESCRIPTION v Comments w <br /> wQO <br /> L <br /> O o <br /> 0 U J m U <br /> (22-42')Groundwater monitoring screen: <br /> 25 2-inch Sch40 PVC 0.020 slot size. <br /> CL Silty clay,olive with brown mottling. 28'-29.67' Logged from simulprobe,no groundwater <br /> 4/4/11/4 recovered. <br /> SM <br /> SM Silty sand,yellowish orange,fine to for 2" <br /> 30 CL medium grained sand,medium dense. 29.67'-31.33' <br /> 4/5/11/4 <br /> Silty sand,fine to medium grained, for 2" Logged from simulprobe <br /> SM medium dense. Groundwater sample from 31.33' <br /> Silty clay,brown,stiff. <br /> 33'-34.42' Logged from simulprobe <br /> Silty sand,yellowish orange,fine to 4/7/23 Groundwater sample from 34.42' <br /> medium subrounded sands. for 5" <br /> 35 <br /> Silty sand,yellowi to orange with white <br /> SM to black sands, medium to very coarse <br /> grained,approximately 20%fines. Unable to log from cuttings. <br /> No recovery,cuttings suggest sand 38.5'-40.17' <br /> 4/7/12/3 <br /> 40 for 2" <br /> Logged from simulprobe <br /> Groundwater sample from 40.17' <br /> Boring terminated at 42'b s. <br /> Page 2 of 2 <br />