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- Professional Service Industries, Inc. <br /> r'��, 4703 Tidewater Avenue, Suite B <br /> ��� Oakland, CA 94601 LOG OF BORING B-2 <br /> Telephone: (510)434-9200 <br /> Fax: 510 434-7676 Sheet 1 of 1 <br /> PSI Job No.: 575308-2 Drilling Method: Hollow Stem Auger WATER LEVELS <br /> Project: Fountain Square Sampling Method: SS California Sampler � <br /> Location: 2808&2826 EI Camino Hammer Type: Manual � <br /> Redwood City Boring Location: - <br /> CA � <br /> Station: N/A � STANDARD PENETRATION <br /> � Offset: N/A o L TEST DATA <br /> � � o a o � � c o N in blows/ft O <br /> � J � z � 'N `° ai X Moisture 0 PL <br /> o L L a� a ��, MATERIAL DESCRIPTION � Q � t LL Additional <br /> a a � � N �, o zs so Remarks <br /> .; � � � � > � 3 0 <br /> w � � � � � v�i m � <br /> � � � STRENGTH,tsf <br /> a � Qu � Qp <br /> � <br /> � o z.o a.o <br /> 1.5 inches of Asphalt over 4 inches of Aggregate <br /> Base <br /> SILT,dark brown,moist,stiff,some fine to <br /> 1 18 medium sand,trace fine gravel 5-6-6 <br /> N=12 12 DD=106 pcf <br /> 2 18 medium dark 5-6-9 10 X o� <br /> ML N=15 <br /> 5 <br /> 3 18 damp-moist,medium brown,verystiff, 10-11-16 � <br /> numerous fine sand N_27 9 X DD=122 pcf <br /> 4 18 Silty CLAY,medium brown,damp to moist,stiff CL 3-4-6 � <br /> N=10 <br /> 10 <br /> 5 18 3-2-3 <br /> Clayey SILT,medium brown,moist,soft ML N=5 <br /> 15 CL <br /> 6 18 CLAY,medium olive-brown,moist,stiff,trace of 5_g_g o <br /> fine to medium sand N=14 <br /> Boring terminated at 16.5 feet below ground <br /> surface. <br /> No Groundwater encountered. <br /> Boring was backfilled with cement grout. <br /> Completion Depth: 16.5 ft Sample Types: Latitude: 37.47° <br /> Shelby Tube <br /> Date Boring Started: 7/18/11 Longitude:-122.2° <br /> Date Boring Completed: 7/18/11 Auger Cutting Hand Auger Drill Rig: <br /> Logged By: ER/SR Split-Spoon Calif.Sampler Remarks: <br /> Drillin Contractor: E loration GeoServices, I Rock Core Texas Cone <br /> The stratification lines represent approximate boundaries. The transition may be gradual. <br />