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0 <br /> S ECOR <br /> Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: well Number: <br /> STTC-Ozone Well Install Hollow Stem Auger <br /> C.Melanion 10/30/03 Cascade Drilling Stockton,California CAL Split Spoon OS-31 <br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop <br /> Diam.(in.): Elev.(ft.): Q 9.5 First Water Depth(ft.): wt.(lbs.): Dist.(in.): <br /> 8 21.0 140 30 <br /> Well ° Q-C 1 3 Description <br /> Construction a .2 o o. a <br /> � <br /> h <br /> a N N <br /> Traffic Rated Sandy Gravel with Silt-Baserock. <br /> Well Box ° <br /> LEAN CLAY(CL):very dark grayish brown(IOYR 3/2), <br /> fine grained sand,stiff,moist,moderate plasticity,(0,10,90). <br /> Grout <br /> 5 7 FAT CLAY(CH):light olive brown,(2.5Y 5/3),very stiff, <br /> 8 moist,high plasticity(0,0,100). 0 OS-31 850 <br /> 9 @5' <br /> b b'. <br /> 0 0 <br /> !. <br /> 10 9 SILT WITH SAND(ML):brown,(IOYR 5/3),fine grained <br /> 9 sand,very stiff,moist to wet,(0,25,75)_ 0 <br /> g OS-31 900 <br /> @ 10' <br /> Bentonite <br /> Chips <br /> 15 6 <br /> 7 FAT CLAY(CH):olive gray(5Y 5/2),fined grained sand, 6 OS-31 1000 <br /> Sand 9 very stiff,moist,high plasticity,(0,10,90). @15' <br /> 6 SILTY SAND(SM):dark greenish gray,(IOY 4/1),fine <br /> 6 grained sand,medium dense,moist to wet,(0,60,40). 2 <br /> 8 <br /> 2" Sparge 7 1 <br /> Tip 2 <br /> OF FAT CLAY(CH):dark greenish gray(10Y 4/1),very stiff, 0 <br /> 20 9 moist,high plasticity,(0,10,90). <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. Date 9/29/04 DWR Log of Well <br /> OS 1-33.GPJ Figure <br /> LOG OF BOREHOLE <br /> (sheet 1 of 1) <br />