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i <br /> SECOR <br /> dniernahona!Incorporated <br />. =g,edByate Dulled Drilling Contractor Project Name Method/Equipment Well Number- <br /> GREGG <br /> umber <br /> GREGG ARCO#4493 HOLLOW STEM AUGER <br /> 5/9/02 DRILLING STOCKTON,CA SPLITSPOON �W_IOMII) <br /> See'Legend to Logs"for Bonng Surface Groundwater Depth(ft} Total Drive Drop <br /> sampling method, Dtam(in) Elev(ft) Fv- <br /> > <br /> 17 FIRST Depth(ft) wt(lbs) Dist(in) <br /> classifications and laboratory 10 54.5 140 30 <br /> testing e <br /> >' <br /> Well z <br /> Construction a Description 8 <br /> G1 w d <br /> 114 L <br /> CLAYEY SILT(MI.) brown(7 5YR4/4),firm,very motst,low plasticity,no 0 <br /> hydrocarbon odor(0,10,50,40) <br /> SILTY SAND(SM light brown(7 5YR6/3),fine-grained sand,medium <br /> dense,saturated,no hydrocarbon odor(0,80,20,0) <br /> 30 0 1 <br /> @301 <br /> SANDY SILT(ML) grayish brown(10YR5/2),fine-grained sand stiff,low <br /> BENTONIIE plasticity,saturated,no hydrocarbon odor(0,35,60,5) <br /> SEAL <br /> SAND#3 <br /> MW-10M 11 35 0 <br /> SCREEN <br /> 2"0020 <br /> 0 <br /> SANDY CLAY(CL).brown(10YR5/3),fine-grained sand,firm,moist,low <br /> plasticity,no hydrocarbon odor(0,40,5,55) <br /> 40 <br /> SILTY SAND(SK grayish brown(10YR5/2),fine-grained sand,medium <br /> dense,saturated,no hydrocarbon odor(0,75,25,0) <br /> BENTONM <br /> SEAL <br /> 45 0 MW1 <br /> MW-1013 Color change to reddish brown(5YR4/4),saturated,no hydrocarbon odor 946' <br /> SCREEN (0,75,25,0) <br /> 2"0 020 <br /> No recovery <br /> 0 MWIC <br /> @511 <br /> The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or <br /> samples obtained during dnlhng Predominant material types shown on the Iog 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 tunes <br /> Project No 77BP 43036 00 0320 Date 5/31/02 PR Log of Well <br />. 4493MW 10 GP7 Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 2 of 3) <br />