Reso13 PC 13-09 2859 Initial Study Mitigated Negative Declaration Kensington

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- Professional Service Industries, Inc. r'��, 4703 Tidewater Avenue, Suite B �� Oakland, CA 94601 LOG OF BORING B-6 Telephone: (510)434-9200 Fax: 510 434-7676 Sheet 1 of 1 PSI Job No.: 575308-2 Drilling Method: Hollow Stem Auger WATER LEVELS Project: Fountain Square Sampling Method: SS California Sampler �While Drilling 20 feet Location: 2808&2826 EI Camino Hammer Type: Manual Redwood City Boring Location: 1 Upon Completion 17 feet CA � Delay N/A Station: N/A � STANDARD PENETRATION � Offset: N/A o L TEST DATA � � o a o � � c o N in blows/ft O � J � z � 'N `° ai X Moisture 0 PL o L L a� a ��, MATERIAL DESCRIPTION � Q � t LL Additional a a � � N �, o zs so Remarks .; � � � � > � 3 0 w � � � � � v�i m � � � � STRENGTH,tsf a � Qu � Qp � � o z.o a.o 3 inches of Asphalt over 4 inches of Aggregate Base. 1 18 SILT,dark brown,damp to moist,stiff,some fine 6-6-7 � to medium sand. N=13 2 18 8-9-13 � very stiff,few fine to medium sand,some clay. ML N=22 DD=121 pcf 5 3 18 soft,few fine sand,few clay. 3_2_� o N=3 4 18 Clay,medium olive-brown,moist,stiff,some silt, 6-5-7 � trace fine to medium sand N=12 10 5 18 numerous silt,trace fine sand. 3-4-5 � � N=9 CL 15 6 18 few silt,no sand 4-5-5 � � N=10 no silt 20 7 �g SandySlLT,medium olive-brown,stiff,fine ML 4-5-5 � sand,trace fine to medium gravel CL N=10 CLAY,medium olive brown,few silt,stiff Boring terminated at 21.5 feet below ground surface. Groundwater encountered at 20 feet while drilling and 17 feet upon completion. Boring was backfilled with cement grout. Completion Depth: 21.5 ft Sample Types: Latitude: 37.47° Shelby Tube Date Boring Started: 7/18/11 Longitude:-122.2° Date Boring Completed: 7/18/11 Auger Cutting Hand Auger Drill Rig: Logged By: ER/SR Split-Spoon Calif.Sampler Remarks: Drillin Contractor: E loration GeoServices, I Rock Core Texas Cone The stratification lines represent approximate boundaries. The transition may be gradual.