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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-51A <br /> Tel: (714) 662-2759 • Fax: (714) 662-2758 TOTAL DEPTH: 70 Feet <br /> PROJECT INFORMATION DRILLING INFORMATION <br /> PROJECT: Nestle Ripon DRILLING CO.: Gregg Drilling <br /> SITE LOCATION:Industrial Ave. DRILLER: Sean,Ronnie, Louis <br /> JOB NO.: 2-5-2 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: 12/14/09 - 12/15/09 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 /> QO <br /> w L <br /> O o <br /> J m U <br /> 45 <br /> SC Clayey sand,very dense. 48'-50' (48'-50')hydrated bentonite seal = <br /> SP 4/8/12/16 — — <br /> 50 CL Sand,subangular poorly graded sands. — — <br /> Sandy clay, brown,predominantly fine 50'-52' Logged from splitspoon. <br /> CL sands. 1/2/4/5 <br /> ML Sand,poorly graded medium grained <br /> rounded sands with<10%fines. 52'-53.67' Logged from simulprobe. <br /> 1/2/8/3 <br /> Sandy clay, brown with red mottling, for 2" Logged from simulprobe. <br /> stiff. <br /> Groundwater sample at 55'. <br /> 55 Silty sand,predominantly fine grained 53.67'-55' <br /> sands, medium dense. 6/7/8/2 <br /> No recovery. for 2" <br /> Clayey sand,brown. <br /> SP Sand,poorly graded fine to medium <br /> micaceous subrounded sands. <br /> 60 (52-67')Groundwater monitoring screen: <br /> 2-inch Sch40 PVC 0.020 slot size. <br /> Page 3 of 4 <br />