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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-30 <br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop <br /> Diam.(in.): Elev.(ft.): SZ 9.5 First Water Depth(ft.): wt.(Ibs.): Dist.(in.). <br /> 8 19.5 140 30 <br /> Well <br /> t 3 Description ca <br /> Construction o o w p n <br /> Traffic Rated <br /> Well Box <br /> o: o. <br /> Grout <br /> 5 7 LEAN CLAY(CL):very dark grayish brown(10YR 3/2), <br /> 6 `ftneined sand, tiff moist1 medium elasticitt 0 10,90�j 0 OS-30 940 <br /> _gL9 FAT CLAY(CH):dark grayish brown(l OYR 4/2),stiff, @5' <br /> moist,high plasticity,(0,0,100). <br /> --------------------------- <br /> 10 7 SANDY SILT(ML):brown,(10YR 5/3),fine grained <br /> 7 sand,stiff,moist to wet,(0,30,70). 2 OS-30 950 <br /> 8 @ 10' <br /> Bentonite <br /> Chips <br /> --------------------------- <br /> 15 9 FAT CLAY(CH):dark greenish gray(10Y 4/1),fine 96 <br /> Sand 8 grained sand,stiff,moist,high plasticity,SPH sheen,strong 7 OS-30 1000 <br /> 7 Ahydrocarbon odor, 0 10 90 . @15' <br /> 6 SILT WITH SAND(ML):dark greenish gray,(10Y 4/1), <br /> 2"Sparge 7 \fine grained sand stiff,moist to wet,10125 75). _____J 4 <br /> Tip 9 SILTY SAND(SM):brown(IOYR 5/3),fine grained sand, <br /> medium dense,moist to wet,(0,65,35). <br /> 1 <br /> 20 <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.GP1 Figure <br /> LOG OF BOREHOLE <br /> (sheet 1 of I) <br />