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SECOR <br /> International Incorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> ARCO#4932 CAL MOD SPLIT SPOON <br /> CM 817103 CASCADE STOCKTON,CA HOLLOW STEM AUGER EW-7 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diam(in) Elev(ft) V 30 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory 12 NA t 315 STATIC 410 140 30 <br /> testis methods <br /> Well a o Description a <br /> W <br /> Construction <br /> 28 GRAVELLY SAND(SW) dark brown(]OYR-313),sand is well 0 1100 <br /> 20 graded fine-coarse,medium-fine gravel(subangular),dense,moist, <br /> 20 (20,80,0,0) <br /> 30 21 • • SILTY SAND w/trace CLAY(SM) olive brown(2 5Y-414),fine 411 1110 <br /> 27 grained sand, dense,moist,moderate to strong odor,(0,35,55,10) <br /> 24 <br /> 35 25 SANDY SILT w/CLAY(ML) olive brown(1 OYR-414),fine 310 1120 <br /> 29 grained sand,hard,moist,moderate plasticity,faint odor, 286 <br /> 29 (0,25,45,30) <br /> 40 26 <br /> 46 1134 <br /> THREADED 228 9SANDY CLAYEY SILT(ML) dark yellowish brown <br /> END CAP (1 OYR-4/4),fine grained sand,hard,moist,moderate plasticity, 55 <br /> 23 <br /> 23 (0,25,45,30) <br /> 25 <br /> 45 <br /> The substrata descriptions above are generalized representations and based upon visual manual classification of cuttings and/or <br /> samples obtained during drilling Predommant 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 location <br /> at the time of drilling and may not be representative of subsurface conditions at other locations or times <br /> Project No 77BP 54932 03 Date 9115103 DWR Log of Well <br /> 4932EW-3 GP7 Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 2 of 2) <br />