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0 ARCADIS SOIL BORING LOG <br /> Infrastructure, environment, buildings Page 1 of 1 <br /> Date Drilled: 4/29/2010 Drilling Contractor: RDM Environmental ID: SB-1 Borehole Depth: 8 feet bgs Driller's Name: Jose Sanchez v7 <br /> Logged By: Jamey Peterson Drilling Method: Hand Auger Client: Pacific Gas&Electric Company <br /> Reviewed By: Bill Copeland,PG No.8565 Sampling Method: Grab Location: McDonald Island Compressor Station <br /> Northing(Y): NA Rig Type: NA 1181 Zuckerman Road <br /> Easting(X): NA Bit Size: 2-inches I racy,California 95206 <br /> Surface Elevation: NA Auger Size: NA Project#: B0092341.0000.00001 <br /> Q, CL c CL <br /> X1 Z m <br /> wt m <br /> Soil Boring a <br /> m U) d Litologic Description mc cU Construction Detail <br /> U tec Z <br /> c I, rn o Q t <br /> 0. = ra v o U o v o. <br /> a c` a` a O s o <br /> 0 0 <br /> 8 NA Concrete at surface to 6 inches bgs <br /> Asphalt <br /> SM- — SILTY SAND WITH CLAY(SM-SC),light brown(10YR 8/3)and gray(N5),dry, <br /> SC fine-to medium-grained sand,low plasticity,weak cementation fines,reddish <br /> 1 — brown(10YR 3/6)in sands,poorly sorted 1 <br /> 0.0 <br /> 2 - 2 <br /> 3 — 3 <br /> 0.0 —. <br /> 4 g Neat Cement 4 <br /> 5 SP 5 <br /> SAND(SP),loose,light brown(10YR 8/3),dry,fine-to medium-grained,trace <br /> silt,homogenous,well sorted <br /> 0.0 <br /> 6 6 <br /> At 7.0 feet bgs,gray(N5)mottling 7 <br /> At 7.5 feet bgs,color change to gray(N5) <br /> 0.0 <br /> 8 Borehole terminated at 8 feel bgs 8 <br /> 9 9 <br /> 10 10 <br /> Abbreviations: bgs=below ground surface, NA=not available;not applicable, PID=photoionization detector, ppm=parts per million, <br /> USCS=Unified Soil Classification System <br /> Samples Collected: C51-SB12-1.5-2.0 at 1215 <br /> C51-SB12-3.5-4.0 at 1220 <br /> C51-SB12-5.5-6.0 at 1300 <br /> C51-SB12-7.5-8.0 at 1330 <br />