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SECOR <br /> International Incorporated <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> ARCO#4932 CAL MOD SPLIT SPOON <br /> CM 816103 CASCADE STOCKTON,CA HOLLOW STEM AUGER SVE-2 <br /> See"Legend to Logs"for Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> sampling method, Diam(in) Elev(ft) SZ 30 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory 8 NA 410 140 30 <br /> testing methods <br /> Well a <br /> 3 Description a <br /> Construction ° ❑ <br /> TRAFFIC AIR Existing well box previously installed <br /> RATED KNIFE <br /> WELL BOX <br /> .0 GROUT SILTY CLAY wl SAND(CL) very dark grayish brown <br /> (I OYR-312),fine grained sand,very stiff,moist,moderate plasticity, <br /> (0,20,25,55) <br /> BENTONITE <br /> SEAL <br /> g SANDY SILT w/CLAY(ML) yellowish brown(1 OYR-514),fine <br /> 13 grained sand,hard,moist,low plasticity, (0,25,65,10) 0 1640 <br /> 19 <br /> 18 <br /> #3 SAND <br /> I <br /> 10 21 0 1645 <br /> ' 23 SILTY SAND wl CLAY(SM) brown(lOYR-4/3),fine grained <br /> 24 sand dense,moist,(0,60,35,5) <br /> i <br /> i <br /> 2„ 15 15 SANDY SILT w/CLAY(ML) brown(IOYR-4/3), fine grained 0 1650 <br /> DIAMETER, 18 sand,hard,moist,low plasticity,sbk soil structure,partially <br /> 0 020"PVC 19 cemented(0,40,55,5) <br /> SLOTTED <br /> SCREEN <br /> 20 21 SILTY SAND wl CLAY(SM) dark yellow brown(I OYR-414), 15 1655 <br /> 26 fine grained sand,dense,moist,(0,65,30,5) <br /> 23 <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during drilling Predornmant 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 54932 03 Date 9115103 DWR Log of Well <br /> 4932EW-3 GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 1 of 2) <br />