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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />LOG OF EXPLORATORY BORING <br />PROJECT NUMBER 939-03.14 BORING NO. MW -5 <br />PROJECT NAME San Joaquin County - Corral Hollow Landfill PAGE 1 OF 5 <br />BY S. Lofholm DATE 4/13/88 SURFACE ELEV. 297.44' <br />NO <br />0.011.51 1 50 <br />0.5/1.51 I 95 L I <br />1.0/1.51 1 98 L 1 <br />DESCRIPTION <br />SANDY GRAVEL, dark grayish brown (2.5Y, <br />4/2); 10% low plasticity fines; 15-20% fine to <br />coarse sand; 65-70% fine to coarse gravel, <br />subrounded to rounded, predominantly <br />metamorphics; loose; dry. <br />Note: hard drilling, with low penetration rate <br />in gravels. <br />@ 5': 20% low plasticity fines; 15-20% fine <br />to coarse sand; very dense; dry. <br />@ 10': dry to damp. <br />@ 19': dark grayish brown (2.5Y, 4/2); <br />20 <br />ldvorawft <br />Aw REMARKS <br />Drilled by 8 -inch continuous -flight hollow -stem augers; samples collected with 2.5 -inch <br />outside -diameter modified Califronia split -spoon sampler. Borehole converted to 2 -inch <br />EIVICON monitoring well as shown on Well Details. <br />ASSOCIATFS <br />POCKET <br />PENETRA- <br />zMJ <br />xg <br />(0 <br />LITHO- <br />RECOVERY <br />PENETRO <br />TION <br />=u,W <br />hIL <br />J <br />GRAPHIC <br />J <br />J <br />METER <br />M3W <br />0. <br />3 <br />(glows/ <br />oZ <br />Q <br />COLUMN <br />(FT/FT) <br />(TSF) <br />Ft.) <br />n <br />-, <br />H <br />In <br />NO <br />0.011.51 1 50 <br />0.5/1.51 I 95 L I <br />1.0/1.51 1 98 L 1 <br />DESCRIPTION <br />SANDY GRAVEL, dark grayish brown (2.5Y, <br />4/2); 10% low plasticity fines; 15-20% fine to <br />coarse sand; 65-70% fine to coarse gravel, <br />subrounded to rounded, predominantly <br />metamorphics; loose; dry. <br />Note: hard drilling, with low penetration rate <br />in gravels. <br />@ 5': 20% low plasticity fines; 15-20% fine <br />to coarse sand; very dense; dry. <br />@ 10': dry to damp. <br />@ 19': dark grayish brown (2.5Y, 4/2); <br />20 <br />ldvorawft <br />Aw REMARKS <br />Drilled by 8 -inch continuous -flight hollow -stem augers; samples collected with 2.5 -inch <br />outside -diameter modified Califronia split -spoon sampler. Borehole converted to 2 -inch <br />EIVICON monitoring well as shown on Well Details. <br />ASSOCIATFS <br />