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• <br />Project: California Army National Guard, FMS24 <br />Log of Soil Boring: <br />Location 8010 South Airport Way Stockton CA Project Numberi8600251 <br />FMS24SBO3 <br />Dates Drilled: 5/1/07-5l2107 <br />Bit Type: HSA <br />Total Depth Drilled: 55 feet bgs <br />Drilling Contractor: Gregg Drilling <br />Borehole Diameter: 8.25 -inch <br />Logged By: Margaret Hogaboom <br />Drilling Method: Hollow Stem Auger <br />Sampling Method: CA Modified Split Spoon <br />Checked By: Vem Elam, P.G. <br />Rig Model: Marl M5T Rhino <br />Hammer: wt. 140 lb. Drop 30 in. <br />Location: About 85 R east of former gasoline UST. <br />PID (ppm) <br />i O 2 <br />N <br />O �N U Graphic <br />COMPLETION <br />Sam Ie ID m r° Log LITAOLOGY DESCRIPTION BOREHOLE <br />y P w <br />0 <br />0 <br />Asphalt C <br />Hand auger to <br />SANDY LEAN CLAY (CL), brown (IOYR 4/3), moist, 55% fines, <br />45% fine to medium sand, medium plasticity, no dilatency, medium Q <br />2 <br />toughness, high dry strength, no odor. D::: D: Backfilled with <br />0 <br />2 <br />Q neat cement grout. <br />3 <br />D: <br />3 <br />D <br />O0: <br />O:::D: <br />4 <br />4 <br />Q.O. <br />5 <br />5 <br />I8/I8 <br />'.:'.:'. <br />DO:: C;. <br />.... <br />---------------------iiiD: <br />6 <br />6 <br />0.0 1.1 <br />--------------- <br />LEAN CLAY CL , grayish brown 2.5Y 5r2 , dry, 100% fines, trace �' <br />( ) gun ( ) 0:. <br />fine sand, medium plasticity, slow dilatency, medium toughness, high <br />dry strength, no odor. Q <br />D:.:D: <br />7 <br />7 <br />�O <br />D: <br />8 <br />8 <br />�0: <br />p 0' <br />9 <br />9 <br />D:::D: <br />p0 <br />— --------- �:.. D' <br />10 <br />10 <br />7 8/I S <br />--------- <br />----------------- <br />SANDY LEAN CLAY (CL), brown (IOYR 5/3), moist, 70% fines, <br />30% fine sand, medium plasticity, slow ddateocy, medium toughness, <br />high dry strengtb, micaceous, no odor. Q Q' <br />11 <br />11 <br />0.0 1.8 <br />oO <br />12 <br />12 <br />O ' <br />�: D: <br />D <br />zi.0� <br />13 <br />13 <br />aQ <br />to <br />O' <br />14 <br />______ ___ ____ O' <br />0 <br />15 <br />15 <br />18/18 <br />FAT CLAY WITH SAND (CFI), browm (10YR 5/3), moist, 75%fines, D <br />25% fine to medium send, high plasticity, re,dilmenry, high <br />16 <br />0.0 1.6 <br />toughness, high dry strength, no odor. t r D' <br />O <br />16 <br />O' <br />17 <br />17 <br />18 <br />D:::D: <br />O <br />18 <br />G <br />19 <br />19 <br />D:::D: <br />20 <br />20 <br />Ste <br />iso <br />S esto, CA 95 33 <br />gauunmw, CA 9583] <br />916-679-2000 <br />