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LOG OF EXPLORATORY BORING <br />PROJECT NUMBER 939-03.14 BORING NO. SB -1 <br />PROJECT NAME San Joaquin County - Corral Hollow Landfill PAGE 1 OF 3 <br />BY S. Lofholm DATE 4/12/88 SURFACE ELEV. 269.03' <br />POCKET PENETRA (3W 0) <br />=� W LITHO - <br />RECOVERY PENETRO TION 3W W a -V, -I GRAPHIC <br />METER 0. <br />(Blows/ tri W oZ Q COLUMN <br />(FT/FT) (TSF) Ft.) t9 J ai N <br />M <br />DESCRIPTION <br />SILTY SAND FILL <br />light yellowish brown <br />g <br />(10YR, 6/4); 20-25% fines; fine sand; trace to <br />5% fine gravel; loose; dry. <br />GW_ SANDY GRAVEL FILL, dark brown (IOYR, <br />0.5/1.5 25 3/3); 10% low plasticity fines; 15-25% fine to <br />coarse sand; 65% fine to coarse gravel, <br />subangular to subrounded; trace of metal and <br />0.5/1.5 14 5 ;; : refuse in sample; medium dense; damp. <br />REFUSE, black (2.5Y, N2/0) to very dark gray <br />(5YR, 3/2); consists of paper, wood, metal, <br />es. <br />and ceramic in sandy gravel matrix. <br />0.5/1.5 17 10 <br />1.3/1.5 9 15 GC CLAYEY SANDY GRAVEL FILL, very dark <br />gray (5Y, 3/2); 25% low plasticity fines; <br />25-30% fine to coarse sand; 40-45% fine to <br />coarse gravel; trace to 5% red brick <br />fragments; loose; moist. <br />REMARKS <br />U0 Drilled by 8 -inch continuous -flight hollow -stem augers; samples collected with 2.5 -inch <br />outside -diameter modified California split -spoon sampler. Borehole converted to 2 -inch <br />EIVICON monitoring well as shown on Well Details. <br />