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SECOR <br /> Logged By Date Drilled Drilling Contractor Project Name Method/Equipment Well Number <br /> i <br /> 7-Eleven#32262 <br /> DC 7/26/04 Gregg Drilling TRACY,CALIFORNIA Hollow Stem Auger MW-9 <br /> Boring Surface Groundwater Depth(ft) Total Drive Drop <br /> Diam(in) Elev(fl) Q9 First Depth(ft) wt(lbs) Dist(in) <br /> 8 t 12 21 Static 200 140 30 <br /> I <br /> Well z <br /> 0 <br /> e 3 Description Q <br /> Construction a °- <br /> R � X <br /> Traffic Rated Concrete 6" <br /> Well Box Fill Material <br />' Grout Hand cleared to 5 feet <br />' d v <br /> g SANDY SILT(ML) dark grayish brown(2 5Y 4/2),fine grained <br /> Bentonite 5 sand,highly plastic,low toughness,soft,moist,no hydrocarbon odor <br />' 12 (0,25,75,0) <br /> 0 MW-9 <br /> Sand 12 -6 5' <br /> 1 � <br /> 2"Dia PVC 10 6 Same as above with color change to brown(IOYR 5/3) <br /> 0 020" 9 <br /> Slotted <br /> Screen 9 CLAY(CL) olrve brown(2 SY 413),highly plastic,medium 0 MW-9 <br /> 9 toughness,stiff,wet no hydrocarbon odor(0,5,0,95) -110* <br /> 17 SILT(ML) light olive brown(2 5Y 4/3),highly plastic, low <br />' g toughness,soft,wet,no hydrocarbon odor(0,5,95,0) <br /> 8 <br /> 20 <br /> 15 6 <br />' 12 <br /> 12 CLAY(CL) light olive brown(2 5Y 5/4),highly plastic,medium 0 MW-9 <br /> 7 toughness,medium softsaturated no hydrocarbon odor(0,5,0,95) -15 5' <br /> 12 SILT(ML) light olive brown(2 5Y 4/3),medium plasticity,low <br />' 6 toughness,very soft,saturated,no hydrocarbon odor(0,5,95,0) <br /> 8 <br /> 15 <br /> Threaded <br />' End Cap 20 <br /> I <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 77EL 32262 03 0502 Date 7/26/04 Log Of well <br />' MW8-9 GPJ Figure <br /> LOG OF BOREHOLE <br /> MW- (sheet 1 of 1) <br /> I <br />