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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 11/3/03 Cascade Drilling Stockton,California CAL Split Spoon OS-49 <br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop <br /> Diam.(in.): Elev.(ft.): SL 8.75 First Water Depth(ft.): wt.(Ibs.): Dist.(in.): <br /> 8 19.5 140 30 <br /> 0 D a � 5 <br /> Well <br /> a 3 Description Q 2 <br /> Construction c a a <br /> a � � <br /> Traffic Rated <br /> Well Box <br /> Gout <br /> 5 5 FAT CLAY(CH):black(IOYR 2/1),stiff,damp,high 30 <br /> 5 plasticity,(0,0,100). <br /> 5 FAT CLAY(CH):dark gray(5Y 4/1),stiff,moist,high <br /> plasticity,faint odor,(0,10,90). <br /> b b <br /> SZ <br /> 10 6 ELASTIC SILT WITH SAND(MH):very dark gray(5Y 45 <br /> 5 3/1),fine grained sand,stiff,moist to wet,moderate 81 OS-49 1520 <br /> 8 plasticity,faint hydrocarbon odor,(0,25,75). @10' <br /> Bentonite <br /> Chips <br /> 15 8 FAT CLAY(CH):dark greenish gray(5GY 3/1),very stiff, <br /> Sand 8 Amoist,high plasticity,strong hydrocarbon odor 0 0 100 . 397 OS-49 1530 <br /> 8 ELASTIC SILT(MH):dark greenish gray(5GY 3/1),high 377 @15' <br /> 8 plasticity,stiff. <br /> 2"Sparge 6 SANDY ELASTIC SILT(MU).-dark greenish gray(5GY <br /> Tip 9 3/1),fine grained sand,stiff to very stiff,moist to wet, 61 <br /> 6 moderateAasticbs moderate hydro carbon odor-(Q_,35,65)L_ <br /> 6 FAT CLAY(CH):dark greenish gray(10Y 4/1),fine 395 <br /> 8 grained sand,very stiff,moist,high plasticity,strong odor, <br /> 20 01090 . <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-44-51.GPJ Figure <br /> LOG OF BOREHOLE <br /> (sheet 1 of I) <br />