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SECOR <br /> Internariunal Incurporated <br /> Logged By; 7Drilled: Drilling Contractor Project Name: Method/Equipment: Well Number; <br /> B.Miller Cascade Drilling 139 5.Center St.,Stockton,Ca HolloCME-75 w Stem agerMw-1See"Legend to LoBoring Surface Groundwater Depth(ft.): Total Drive Drop <br /> sampling method, Diam.(in.): Elev.(ft.): Q D thclassifications and 25 First Encountered eP (0•) wt,(Ibs.}: Dist.{m.): <br /> testin methods8 30.0 140 30 <br /> Well Details Description a <br /> Cn v <br /> RS <br /> 12-inch Soil Surface <br /> traffic rated <br /> well box. <br /> Location was vacuum cleared to 87"bgs on 3/29/2004. <br /> Abundant broken up concrete and asphalt were removed during clearance <br /> activities. <br /> S <br /> 2"Sch.40 SILTY SAND WITH GRAVEL(SMG): Yellowish brown(I OYR 5/4); <br /> PVC Set In 15-25%low plasticity fines;65-75%well graded,fine to coarse-grained sand; <br /> Portland gravels to 0.75"in diameter;damp;very dense;no hydrocarbon odor. <br /> Cement 10- <br /> 4.5 0.6 <br /> SILTY SAND(SM): Yellowish brown(1 OYR 5/4);25-35%non-plastic fines; <br /> fine to medium-grained sand;damp;very dense;no hydrocarbon odor. <br /> 15 <br /> 4/5 1.1 <br /> Hydrated <br /> Bentonite <br /> Chips <br /> #2/16 Sand <br /> 20- <br /> 5/5 0.6 <br /> 0.01"Slotted CLAYEY SAND(SC): Brown(I OYR 4/3);3545%medium plasticity fines; <br /> 2"Sch.4055-65%fine-grained sand;trace iron-oxide staining;trace black staining;damp; <br /> PVC Screen very dense;no hydrocarbon odor. <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling. Predominant material types shown on the log may contain different materials and the change from <br /> one predominant material type to another could be different than indicated. Descriptions on this log apply only at the specific Iocation <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times. <br /> Project No. 77CH.90557.04 Date March/April 2004 <br /> Log of Well <br /> CH90557.GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure 17 (sheet 1 of 2) <br />