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Q ARCADIS SOIL BORING LOG <br /> Infrastructure, environment, buildings Page 1 of 1 <br /> Date Drilled: 4/28/2010 Drilling Contractor: RDM Environmental 'D SB-5 <br /> Borehole Depth: 8 feet bgs Driller's Name: Chris Easely <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(l): NA Rig Type: NA 1181 Zuckerman Road <br /> Easting(X): NA Bit Size: 2-inches I Tracy,California 95206 <br /> Surface Elevation: NA Auger Size: NA Project#: B0092341.0000.00001 <br /> E CL <br /> t <br /> m E a <br /> a s' mm c 126SoilBoring a <br /> e c Lithologic Description M Construction Detail m <br /> m Q <br /> c In rn o o r <br /> 0. <br /> 0 -0 to 00 <br /> 0 <br /> 0 o Q K a O :3C7 x o <br /> 00 <br /> 8 Gravel at surface <br /> ®..: Asphalt <br /> - ------------------------------------------ <br /> SM SILTY SAND(SM),loose,brown(10YR 5/3),dry,fine-to medium-grained, <br /> 1 some gravel,poorly sorted 1 <br /> 1.9 <br /> 2 2 <br /> 3 SP SAND SP,loose,light brown 10YR 8/3,d fine-to medium-grained, 3 <br /> ( ) g ( )dry, m-grained,little <br /> silt,homogenous,well sorted <br /> e 5.2 <br /> 4— g Neat Cement 4 <br /> S <br /> 5 5 <br /> 6.8 CL LEAN CLAY(CL),soft,dark gray(N3)and light brown(10YR 8/3),dry,medium <br /> 6— plasticity,some sand,fine-to medium-grained,little silt,well sorted sands 6 <br /> 7 7 <br /> 5.2 SP SAND(SP),loose,gray(NS),dry,fine-to medium-grained,trace silt,well sorted <br /> 8 Borehole terminated at 8 feet 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-SB5-1.5-2.0 at 1025 <br /> C51-SB5-3.5-4.0 at 1030 <br /> C51-SB5-5.5-6.0 at 1036 <br /> C51-SB5-7.5-8.0 at 1055 <br />