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SECOR <br /> Internatronal Incorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> ARCO#595 HOLLOW STEM AUGER <br /> CM 6/24/02 CASCADE STOCKTON, CA SPLIT SPOON DMW-1 <br /> See"Legend to L gs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> samphng method, Diam(in) Elev(ft) SZ 67 FIRST WATER Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory <br /> testing methods 8 34 30 TOC 63 STABILIZED 1015 <br /> a <br /> Well 04 Description <br /> Construction Qa A rd <br /> 50 @ 74' <br /> 5 <br /> 9 0 <br /> 36 SAND(SP) with silt,olive brown(2 5Y4/4),sand is fine-grained, 0 DMW1 <br /> 80 42 very dense,wet(0,95,5,0) @79' <br /> 50/3 <br /> b A <br /> r • <br /> e e <br /> 37 CLAYEY SILT(ML) with sand,dark yellowish brown(10YR4/6), 0 DMWI <br /> d 85 45 sand is fine-grained,hard,moist, moderate plasticity(10,15,60,25) @84' <br /> 47 <br /> b e <br /> r <br /> A a <br /> 23 a DMWI <br /> 32 @ 89' <br /> BENTO 90 29 Same as above <br /> SEAL <br /> 30 DMWI <br /> 32 @91 5' <br /> #3 SAND 33 <br /> 31 0 DMWI <br /> 2"DIA 95 35 @94' <br /> 002" <br /> S ✓D <br /> 34 Driller reports silt MW <br /> SCREEN 37 @96 5' <br /> 38 <br /> 31 SAND(SP) with silt,dark yellowish brown(10YR4/4),sand is 0 MW <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 drilling and may not be representative of subsurface conditions at other locations or times <br /> Project No 77BP 50595 00 0330 Date 8/6/02 GMH Log of Well <br /> 595DMW-I GP! Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 4 of 5) <br />