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S ECOR <br /> Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: well Number: <br /> • CHEVRON 1001621 HSA <br /> T. MYERS 12/13/04 CASCADE BANTA,CA CME MW-65B <br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop <br /> Diam.(in.): Elev.(ft.): Depth(ft.): wt.(lbs.): Dist.(in.): <br /> 8 60.0 140 30 <br /> Well ° z <br /> Constructiona o Description a <br /> 20 <br /> 20 Poorly Graded Sand(SP):very dark grayish brown(2.5Y 3/2),fine <br /> 20 grained,dense,wet,faint odor,(0-100-0). 4 JvIW651 <br /> @26' <br /> 24 <br /> 26 Silty Sand(SM):light olive brown(2.5Y 5/4),fine grained,medium <br /> 27 dense,moist,(0-50-50). 3 4W651 <br /> @28.5' <br /> 2" Sch 40 30 23 3 <br /> PVC Casing 25 <br /> 27 <br /> 27 _ 3 AW651 <br /> 29 Lean Clay with Sand(CL):brown(10 YR 5/3),medium plasticity, @33' <br /> 30 very stiff,fine grained sand,moist,(0-25-75). <br /> 35 29 _ _ __ __ <br /> 39 Silty Sand(SM):brown(10YR 4/3),fine grained,medium dense, <br /> 40 wet,(0-80-20). <br /> 20 Lean Clay with Sand(CL):As Above <br /> Neat Cement 24 3 vIW651 <br /> Grout 21 Poorly Graded Sand with Silt(SP-SM):dark grayish brown(IOYR @38.5' <br /> 4/2),fine grained,dense,wet(0-90-10). <br /> 40 -------- — — --- ----- ------ <br /> 31 Silty Sand(SM):olive brown(2.5Y 4/3),fine grained,dense moist to <br /> 40 wet,(0-80-20). <br /> 40 J, 1 14W651 <br /> @41' <br /> 22 <br /> 33 Fat Clay(CH): light olive brown(2.5Y 5/4)very stiff,high plasticity, <br /> 33 fine grained sand,moist,(0-10-90). 1 1AW651 <br /> 45 @44' <br /> 28 3 W65 <br /> 32 Silty Sand(SM):light yellow brown(2,5Y 6/3),fine grained,dense, @45' <br /> 37 moist to wet, (0-65-35). <br /> Bentonite <br /> Seal 37 <br /> 34 <br /> 36 1 W65 <br /> -------------------------------- r@48.5' <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. 77CH.11621.28.0250 Date 12/17/2004 MB Log of Well <br /> 1621M65B.GPJ Approved by <br /> LOG OF BOREHOLE <br /> Figure (sheet 2 of 3) <br />