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LOG OF EXPLORATORY BORING <br /> PROJECT NUMBER 939-02.06 BORING NO. G-2 <br /> PROJECT NAME S.J. County Landfill Development Site PAGE 7 OF 8 <br /> BY BAB DATE 7/01-02/87 SURFACE ELEV. 104.90 <br /> POCKET PENETRA- LITHO- <br /> TORVANE PENETRO- TION z� N H <br /> METER �+ W = a GRAPHIC DESCRIPTION <br /> (Blows/ ~ w 0. COLUMN <br /> o ` <br /> (TSF) (TSF) Ft.) t9 ; -j C y <br /> ML SANDY SILT, yellowish brown (10YR, 5/4) ; <br /> 20% very fine- to fine-grained sand; <br /> 10-15% medium- to coarse-grained <br /> sand; moderately clayey; occasional <br /> rust brown iron oxidation stains; <br /> easily crumbled; moist. <br /> 125 Varies to Silty Sand with 10% light <br /> reddish brown (5YR, 5/3) clay. <br /> CL CLAY. <br /> 130 <br /> SM- SILTY SAND to SANDY SILT, strong brown <br /> ML (7.5YR, 4/6); 40-55% fines; predom- <br /> 135 inantly very fine to fine grained; <br /> minor coarse- to very coarse-grained <br /> sand and fine gravel; much harder <br /> than above. <br /> CEMENTED SAND, coarse grained; trace <br /> fine gravel ; metamorphic composition, <br /> with 35% subangular to subrounded <br /> quartz; cemented agent unknown; <br /> 40 " extremely hard. <br /> REMARKS <br /> denotes static water level . <br /> Interval 120-130 feet cored (1-1/2 feet recovery). <br /> 1 denotes core recovered. <br /> PLATE A-31 <br />