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SECOR <br />Internanonal Incorporated <br />Logged By <br />EG <br />Date Dulled <br />2/14/02 <br />Dulling Contractor <br />GREGG <br />DRILLING <br />Project Name -1 <br />CHEVRON 9-8632 <br />TRACY, CA <br />Method/Equipment <br />SPLIT SPOON <br />HOLLOW STEM AUGER <br />Well Number <br />MW-6B <br />See "Legend to Logs" for <br />sampling method, <br />classifications and laboratory <br />testirig methods <br />Boring <br />Dram (in) <br />8 <br />Surface <br />Elev (ft) <br />25 90 TOC <br />Groundwater Depth (ft) <br />V 12 FIRST <br />Total <br />Depth (ft ) <br />50 0 <br />Drive <br />wt (lbs ) <br />140 <br />Drop <br />Dist (in) <br />30 <br />Well <br />Construction <br />= <br />.i. Sample Recovery Blows/6" Description P. <br />. <br />' ei <br />. ; „ <br />ci <br />.. I <br />I c <br />l - <br />' <br />' • , <br />lb <br />4 <br />0 <br />'a CI <br />, , <br />! e <br />A <br />0 . . <br />Ic <br />> <br />0 <br />. A. <br />C <br />b <br />W <br />r • <br />9. <br />P <br />c <br />0 <br />, <br />C <br />.111 <br />..12:. <br />. <br />' '• <br />l. <br />! ti <br />. ; <br />0 v <br />!.., A <br />I. <br />C b. <br />' <br />! 0 , <br /> <br />p. <br />l l <br />I <br />1 <br />p <br />'c t <br />! e <br />'A . <br />A . . <br />P, r <br />.0 <br />° W <br />C <br />A <br />' • . <br />r . ' <br />r. r <br />, <br />E <br />.• <br />i• , <br />r <br />TRAFFIC <br />— <br />— <br />5 <br />—1 <br />—' <br />--' <br />10 <br />_ <br />— <br />15 <br />—' <br />— <br />— <br />— <br />— <br />_ <br />2O 2 <br />3 <br />3 <br />4 <br />6 <br />15 <br />7 <br />7 <br />8 <br />2 <br />Asphalt , <br />MW6B <br />@5' <br />MW6B <br />@10' <br />MW6B <br />@15' <br />MW6B <br />@20' <br />i. .:GROUT <br />RAIED <br />WELL BOX <br />CLAYEY SILT (ML) dark gray (101R4/1), low plasticity, soft, moist, <br />slight petroleum odor (0,0,60,40) <br />SILTY CLAY (CL) dark grayish brown (10YR4/2), medium plasticity, <br />medium stiff, moist, petroleum odor (0,0,35,65) <br />SILTY CLAY (CL) brown (10YR5/3), medium plasticity, soft, wet, no <br />odor (0,0,30,70) <br />Same as above <br />The substrata descnptions 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 matenals and the change from <br />one predominant material type to another could be different than indicated ions on this log apply only at the specific location <br />at the time of drilling and may not be representative of subsurface cond EteptlistlUons or times <br />Project No 77CH 43578 00 0203 Date REVISED 6/13/02 pr <br />8632MW6B GEE <br />LOG OF BOREHOLE <br />SCOTT <br />'I GABLE <br />No 63 <br />Log of Well <br />Figure <br />(sheet 1 of 3)