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u <br />IE <br />LU*OG <br />OF <br />EXPLORATORY BORING <br />PROJECT NUMBER <br />939-02.06 <br />Clay: weak red (2.5YR, 5/2); more <br />BORING NO. G-1 <br />PROJECT NAME <br />S.J. <br />County Landfill <br />Development Site PAGE 8 OF 9 <br />BY BAB DATE 6/22-23/87 <br />SURFACE ELEV. 117.07 <br />(10YR, 4/4); 40% fines; very fine <br />POCKET <br />PENETRA- <br />to fine grained; minor medium <br />a <br />H LITHO- <br />grained; trace iron and manganese <br />TORVANE <br />PENETRO- <br />METER> <br />TION <br />Z <br />Z <br />J GRAPHIC <br />DESCRIPTION <br />(TSF) <br />(TSF) <br />(Blow <br />)'/ <br />a <br />�; J <br />c <br />y COLUMN <br />micaceous than above; iron (?) <br />Q <br />cemented; low rock hardness. <br />6/23/87 <br />SM/ <br />T 00 <br />T 00 <br />SM- <br />ML- <br />SILTY SAND, SAND, SANDY SILT and CLAY, <br />SP/.1 <br />Interbedded (approximately 50%, 10%, <br />ML/ <br />SANDY SILT to SILTY SAND (continued); <br />20%, 20%); <br />CL <br />Silty Sand: as at 150'. <br />SM <br />Sand: yellowish brown (10YR, 5/4); <br />155 <br />dark yellowish brown (10YR, 4/4); <br />5-10% fines; predominantly medium <br />SM-.' <br />F <br />SP <br />rounded fine pebbles. <br />I <br />very fine to fine grained; minor <br />Sandy Silt: dark yellowish brown <br />(10YR, 4/6); 20-25% fine-grained <br />:ore Bo <br />sand; slightly clayey; trace fine <br />1 SM <br />medium grained, common black coat - <br />rootholes. <br />HT <br />SILTY SAND, yellowish brown (10YR, 5/4); <br />10% fines; predominantly medium to <br />ings; increasingly more indurated. <br />CL/ <br />CLAY and SILTY SAND, Interbedded (1:1); <br />145 SM <br />Clay: weak red (2.5YR, 5/2); more <br />indurated than clay above. <br />Silty Sand: dark yellowish brown <br />(10YR, 4/4); 40% fines; very fine <br />to fine grained; minor medium <br />grained; trace iron and manganese <br />j:W <br />oxidation. <br />SILTY SAND, dark yellowish brown (10YR, <br />SM <br />: <br />4/4); 15-25% fines; very fine to fine <br />grained; slightly more quartzose and <br />150 <br />micaceous than above; iron (?) <br />Q <br />cemented; low rock hardness. <br />6/23/87 <br />SM/ <br />T 00 <br />T 00 <br />SM- <br />10 <br />SILTY SAND, SAND, SANDY SILT and CLAY, <br />SP/.1 <br />Interbedded (approximately 50%, 10%, <br />ML/ <br />20%, 20%); <br />CL <br />Silty Sand: as at 150'. <br />Sand: yellowish brown (10YR, 5/4); <br />155 <br />5-10% fines; predominantly medium <br />SM-.' <br />to coarse grained; trace very hard <br />SP <br />rounded fine pebbles. <br />Sandy Silt: dark yellowish brown <br />(10YR, 4/6); 20-25% fine-grained <br />:ore Bo <br />sand; slightly clayey; trace fine <br />1 SM <br />rootholes. <br />HT <br />SILTY SAND, yellowish brown (10YR, 5/4); <br />10% fines; predominantly medium to <br />coarse grained; trace fine gravel; <br />—�60 <br />11 -minor <br />clay interbeds. <br />REMARKS <br />-7-denotes first encountered water. <br />Interval 156.5-166.5 feet cored (2 feet recovery). <br />denotes core recovered. <br />PLATE A-22 <br />