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SECOR <br /> Internarlonal Incorporated <br /> Logged By Date Dnlled Drilling Contractor Protect Name Method/Equipment Well Number <br /> WEST ARCO#4932 SPLIT SPOON <br /> CM 6/11/02 HAZMAT STOCKTON,CA HOLLOW STEM AUGER DMWAMi <br /> See"Legend to Logs"for Bong Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diam(in) Elev(ft 26 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory 8 NA X 28 STABILIZED 825 140 30 <br /> testme methods <br /> Well a <br /> Construction 4 Description E� <br /> • 17 SILTY SAND(SM) olive gray(5Y4/2),fine-grained sand,dense,moist to 19 <br /> 14 wet,subangular blocky to platy soil structure,weakly cemented,faint chemical <br /> a 24 odor(0,70,30,0) <br /> a 30 18 SAND(SP) olive brown(2 5Y4/3),with trace silt,fine-grained,dense,wet 26 <br /> Y 22 (0,100,0,0) <br /> 25 <br /> A A <br /> ° p <br /> p 0i 35 14 CLAYEY SILT(ML) grayish brown(2 5Y5/2),moderate plasticity,hard, 14 <br /> t 24 moist,caliche in zones(0,0,60,40) <br /> 29 SILTY CLAY(CL).dark yellowish brown(10YR4/4),moderate plasticity, <br /> ° very stiff,moist(0,0,40,60) <br /> d p <br /> 40 21 Same as above 2 <br /> 23 <br /> 29 <br /> a a <br /> t � <br /> A A <br /> ■ • <br /> ° 45 24 CLAYEY SILT with SAND(ML) dark yellowish brown(10YR4/4), 2 <br /> 29 fine-grained sand moderate plasticity, very stiff to hard moist, 0 20 50 30 <br /> 32 SILTY SAND(SM) dark yellowish brown(10YR4/4),fine-grained sand, <br /> t <br /> very dense,moist to wet,subangular blocky soil structure, (0,65,35,0) <br /> JE■ ■ <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 location <br /> at the time of dnlltng and may not be representative of subsurface conditions at other locations or times <br /> Protect No 77BP 54932 00 0230 Date 8/15/02 PR Log of Well 0 <br /> 4932DMW2 GPf Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 2 of 4) <br />