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J J J Lu"G OF EXPLORATORY BORING PROJECT NUMBER 939-02.06 BORING NO. G-1 PROJECT NAME S.J. County Landfill Development Site PAGE 8 OF 9 BY BAB DATE 6/22-23/87 SURFACE ELEV. 117.07 REMARKS 7 denotes first encountered water. Interval 156.5-166.5 feet cored (2 feet recovery). denotes core recovered. POCKET PENETRA- r = N LITMO- TORVANE PENETRO- METER TIONZ J 3 � W g a GRAPHIC DESCRIPTION (TSF) (TSF) (a Owe/ Ft.) ® < W v 3 r d ® = COLUUN H ML- SANDY SILT to SILTY SAND (continued); SM dark yellowish brown (10YR, 4/4); very fine to fine grained; minor medium grained, common black coat- ings; increasingly more indurated. CL/ : CLAY and SILTY SAND, Interbedded (1:1); 145 SM Clay: weak red (2.5YR, 5/2); more indurated than clay above. Silty Sand: dark yellowish brown (10YR, 4/4); 40% fines; very fine to fine grained; minor medium grained; trace iron and manganese oxidation. SILTY SAND, dark yellowish brown (10YR, SM 4/4); 15-25% fines; very fine to fine grained; slightly more quartzose and 150-Emicaceous than above; iron (?) cemented; low rock hardness. 6/23/87 SM/ SM- SILTY SAND, SAND, SANDY SILT and CLAY, SP/ Interbedded (approximately 50%, 10%, ML/ 20%, 20x); CL Silty Sand: as at 150°. Sand: yellowish brown (10YR, 5/4); 155 011 5-10% fines; predominantly medium SM- .° to coarse grained; trace very hard SP rounded fine pebbles. Sandy Silt: dark yellowish brown (10YR, 4/6); 20-25% fine-grained Core Box sand; slightly clayey; trace fine 1 SM rootholes. SILTY SAND, yellowish brown (10YR, 5/4); 10% fines; predominantly medium to coarse grained; trace fine gravel; 60 minor clay interbeds. REMARKS 7 denotes first encountered water. Interval 156.5-166.5 feet cored (2 feet recovery). denotes core recovered.