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i SECOR <br /> InternauonalIncorporate <br /> d <br /> ' Logged By Dates Drilled Drilling Contractor Project Name MethodlEquipment - Well Number <br /> 7113/01 WEST ARCO#4932 SPLIT SPOON <br /> CM -7/13/01 HAZMAT STOCKTON,CA- - - HSA - -MW-5= <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> ' sampling method, Dram(in) Elev(ft) 26 5 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory <br /> testing methods 8 NA 1 27 77 STABILIZED 405 140 30 <br /> 4 a <br /> t Well a o Description A <br /> Construction <br /> A <br /> 1 � <br /> TRAFFIC Concrete <br /> RATED SANDY SILT(ML) brown(10YR5/3),fine-grained sand,moderate <br /> ' WELL BOX plasticity,medium stiff,moist(0,40,60,0) <br /> A SILTY CLAY(CL) very dark gray(10YR3/1),fine-grained sand,moderate <br /> plasticity,very stiff,moist(0,20,30,50) <br /> ' • GROUP <br /> 5 5 SANDY SILT (ML) brown(10YR5/3),fine-grained sand,low plasticity, 0 <br /> 5 stiff,moist,subangular blocky soil structure,abundant rootholes(0,25,75,0) <br /> e e <br /> ' o 4 Same as above 0 <br /> 10 5 <br /> •1 a a 8 <br /> A l <br /> 8 Same as above,very stiff 0 <br /> 15 12 <br /> ' 16 <br /> BENTONM <br /> SEAL <br /> ' SAND <br /> � 1 <br /> 20 SILTY SAND(SM)- dark yellowish brown(10YR4/4),fine-grained sand, <br /> ' 2" 20 21 dense,moist,abundant rootholes(0,70,30,0) <br /> SLOTTED <br /> SCREEN <br /> ll 1 <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 dnlling 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 Well <br /> ' 4432MW5 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure {sheet 1 of 2} <br /> 1 <br />