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SECOR <br /> Internat[onaf Tricor orated <br /> Logged By Date Dnlled Drilling Contractor Project Name Method/Equipment Well Number <br /> ARCO#4932 CAL MOD SPLIT SPOON <br /> CM 816103 CASCADE STOCKTON,CA HOLLOW STEM AUGER EW-4 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diam(in) Elev(ft) SZ 30 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory 12 NA 1 32 25 STATIC 410 ]140 30 <br /> testing methods <br /> Well <br /> Description a <br /> Construction ° q t— <br /> q ) a. <br /> TRAFFIC 4-INCH CONCRETE SIDEWALK <br /> RATED GRAVELLY SAND-FILL <br /> WELL BOX SILTY CLAY wl SAND(CL) very dark grayish brown <br /> d d GROUT (IOYR-312),fine grained sand,very stiff,moist,moderate plasticity <br /> ' (0,10,30,60) <br /> v v <br /> a <br /> 5 11 0 <br /> qq 13 SANDY CLAYEY SILT(ML) light olive brown(2 5Y-513),fine <br /> 13 grained sand,very stiff,moist,moderate plasticity, (0,20,50,30) <br /> b b <br /> 10 15As above,hard 0 1240 <br /> 9 0 <br /> 18 <br /> 24 <br /> 0 0 <br /> A d <br /> a a <br /> I5 18 SILTY SAND wl CLAY(ML) olive brown(2 5Y-413),fine 0 <br /> v v <br /> 23 grained sand,dense,moist,weak sbk, soil structure,(0,55,40,5) <br /> . <br /> BENTONITE 20 <br /> SEAL <br /> SAND <br /> 20 <br /> DIAMETER, L29 <br /> SAND wl SILT(SP) dark yellowish brown(1 OYR-414),fine 0 1250 <br /> 0 020" grained sand,very dense,moist,(0,95,5,0) <br /> STAINLESS <br /> STEEL <br /> WRAP <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during dnIling 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 location <br /> at the trine 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 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 1 of 2) <br />