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1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 LOG OF EXPLORATORY BORING PROJECT NUMBER 939-02.06 BORING NO. G-2 PROJECT NAME S.J. County Landfill Development Site PAGE 4 OF 8 BY BAB DATE 7/01-02/87 SURFACE ELEV. 104.90 ML/ i sANUT 51LI and 5ANUY CLAY, Interbedded CL (-1:1) (continued); Silt: strong brown (7.5YR, 4/6); 25% very fine- to fine-grained sand; minor interbeds light yellowish brown (10YR, 6/4), medium -grained clayey sand; much harder than clay and clayey sand above. Clay: light brown (7.5YR, 6/4) to 65 pinkish gray (7.5YR, 6/2); 10-20% medium- to predominantly coarse- grained quartzose sand; soft; moist. 70 @-70': sand increases in silt and clay to 30-40%; very fine to fine A I grained. 7 SM SILTY SAND, strong brown (7.5YR, 4/6); 30-35% fines; very fine to fine grained trace medium; slightly micaceous; very damp. PLATE A-28 POCKET PENETRA— LITHO— TORVANE PENETRO— TION i W J z H GRAPHIC DESCRIPTION METER �'°' W (Blows/oc < W s 'L a = COLUMN (TSF) (TSF) Ft.) c9 3 _j W < ML/ i sANUT 51LI and 5ANUY CLAY, Interbedded CL (-1:1) (continued); Silt: strong brown (7.5YR, 4/6); 25% very fine- to fine-grained sand; minor interbeds light yellowish brown (10YR, 6/4), medium -grained clayey sand; much harder than clay and clayey sand above. Clay: light brown (7.5YR, 6/4) to 65 pinkish gray (7.5YR, 6/2); 10-20% medium- to predominantly coarse- grained quartzose sand; soft; moist. 70 @-70': sand increases in silt and clay to 30-40%; very fine to fine A I grained. 7 SM SILTY SAND, strong brown (7.5YR, 4/6); 30-35% fines; very fine to fine grained trace medium; slightly micaceous; very damp. PLATE A-28