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U ! <br /> SECOR <br /> k> ! rnco „red <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> WEST ARCO#4932 SPLIT SPOON <br /> BH 11/13/02 HAZMAT STOCKTON,CA HOLLOW STEM AUGER EW-6 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diam(in) Elev(ft) 28 FIRST Depth(ft) wt(Ibs) Dist(in) <br /> classifications and laboratory S 415 140 30 <br /> tesrrn methods <br /> Cons�trulction 3 Descnption <br /> TRAFFIC 6-inches asphalt <br /> RATED Hand SILTY CLAY (CL) very dark grayish brown(IOYR3/2), moderate <br /> ' WELL BOX Auger plasticity,stiff,moist(0,0,40,60) <br /> k 4 <br /> SANDY SILT(ML) brown(10YR5/3),with clay,fine-grained sand,low <br /> • GROUT plasticity,hard,moist,subangular blocky soil structure(0,30,65,5) <br /> 5 5 0 <br /> �• �• 9 <br /> 10 <br /> b °• <br /> 10 20 0 <br /> 22 Same as above,no odor <br /> b a <br /> BENTONM 25 <br /> SEAL <br /> SAND <br /> 22 Same as above,no odor 3 <br /> 6" 15 27 <br /> DIAMETER, 29 <br /> 0 020" <br /> STAINLESS <br /> STEEL <br /> WRAP <br /> 20 20 Same as above,slight chemical odor 4 <br /> 20 <br /> 24 SILTY SAND(SM) dark yellowish brown(10YR4/4),fine-grained sand, <br /> medium dense,moist(0,75,25,0) <br /> ------------------------------------- <br /> SANDY SILT(ML) yellowish brown(10YR5/4),fine-grained sand,hard, <br /> moist,moderate chemical odor(0,40,60,0) <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 matenal type to another could be different than indicated Descnptions on this log apply only at the specific location <br /> at the tune of drilling and may not be representative of subsurface conditions at other locations or times <br /> Project No 77BP 54932 02 0936 Date 12/17/02 Log of Well <br /> 4932EW6 GPJ Figure <br /> LOG OF BOREHOLE <br /> (sheet 1 of 2) <br />