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SECOR <br /> Internatronallneo ?ated <br /> Logged By Dates Drilled Drilling Contractor Project Name MethodlEquipment Boring Number <br /> 719101 WEST ARCO#4932 CONTINUOUS CORE <br /> CM 719101 HAZMAT STOCKTON,CA HSA SB-1 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Dram{m) Surface(ft) 27 5 FIRST Depth(ft) wt(lhs) Drst(in) <br /> classifications and laboratory <br /> testing methods $ NA X 28 5 STABILIZED 80.5 NA NA <br /> Well 9Description <br /> Construction °' <br /> ckl <br /> Z <br /> 1 <br /> Same as above,less clay <br /> 80 l <br /> $5 <br /> 90- <br /> 95— <br /> The <br /> 095The 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 mdicated Descriptions on flus 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 077.43286.330 Date 8/14/01 PR Log of Boring <br /> 4932SB 1 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 4 of 4) <br />