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1 SECOR <br /> Interna Wnal Incorporated <br /> ' <br /> Logged Dnlled Drilling Contractor Project Name Method/Equipment Well Number <br /> WEST ARCO#4932 SPLIT SPOON <br /> 3114102 HAZMAT STOCKTON,CA HOLLOW STEM AUGER DMW-1 <br /> See"Legend to Logs"for Bonng Surface Groundwater Depth(ft) Total Dave Drop <br /> sampling method, Diam(in) Elev(ft) -7 30 5 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory <br /> tesdn methods 8 11.98 TOC X 29 STABILIZED 810 140 30 <br /> Well o Description <br /> Construction <br /> 7. 12 2 <br /> 17 SILTY SAND(SM) dark yellowish brown(10YR4/4),fine-grained <br /> ' 4 a 19 sand,very dense,moist to wet(0,60,40,0) <br /> R <br /> a e 30 7SANDY SILT(ML) yellowish brown(10YR5/4),fine-grained sand, 10 MW <br /> ° 9 hard moisL strop chemical odor 040 60 0 930' <br /> 1 i SILTY SAND(SM) brown(10YR4/3),fine-grained sand,medium <br /> A A dense,wet,faint chemical odor(0,75,25,0) <br /> No recovery Driller reports sand <br /> ° 35 SAND(SP) olive brown(2 5Y4/3),with trace silt,fine-grained, <br /> ' dense,wet(0,100,0,0) <br /> b ° <br /> P. <br /> GROUT <br /> 4 4 <br /> n 40 21 SANDY SILT(ML) olive brown(2 5Y4/3),fine-grained sand,low 0 DMWI <br /> I 50/6" plasticity,very stiff to hard,moist(0,40,60,0) @40' <br /> a a <br /> A P <br /> 12 <br /> y 45 5 <br /> 17 Same as above,faint chemical odor <br /> 21 <br /> The substrata descriptions above are generalized representations and based upon visuallmanual classification of cuttings and/or <br /> samples obtained during drilling Predominant matenal types shown on the log may contain different matenals and the change from <br /> one predominant material type to another could be different than indicated Descnptions on this log apply only at the specific location <br /> 1 at the time of drilling and may not be representative of subsurface conditions at other locations or times <br /> Project No 77BP 43287 00.0040 Date 5129/02 PR Log of Well <br /> 4932DMW1 GP] Approved by r <br /> LOG OF BOREHOLE <br /> Figure (sheet z of 4) <br /> 1 <br />