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0 <br /> $ ECOR <br /> Logged By: Dates Drilled: Drilling Contractor Project Name: Method/Equipment: well Number: <br /> 10/20/03 STTC-Ozone Well Install Air Rotary <br /> C.M. 10/21/03 Cascade Drilling Stockton,California Casing Hammer OS-10B <br /> Boring Surface Groundwater Depth(ft.): Total Drive Drop <br /> Diam.(in.): Elev.(ft.): SZ 18 First Water Depth(ft.): wt.(Ibs.): Dist.(in.): <br /> 8 -40.0 140 30 <br /> c� <br /> Well 0 <br /> Description a <br /> Construction a <br /> ca � ca <br /> w <br /> 6 <br /> Bentonite <br /> ___ 9 <br /> SILTY SAND(SM):dark greenish gray(IOGY 3/1),fine grained sand,medium <br /> #3 Sand 30 dense,wet,faint odor,(0,60,40). <br /> POORLY GRADED SAND WITH SILT(SP-SM):dark greenish gray(5GY 3/1), <br /> fine grained sand,medium dense,wet,faint hydrocarbon odor,(0,90,10). <br /> i 2" Sparge <br /> Tip ————————— — ——— -- -- ----- <br /> POORLY GRADED SAND(SP):dark greenish gray(5GY 3/1),fine-medium <br /> 35 grained sand,dense,wet,faint odor,(0,100,0). 7 <br /> 40 SANDY ELASTIC SILT(MH):dark greenish gray(1 OG 3/1),fine grained sand, r 14 <br /> `stiff_moist to wet,moderate.plastic�1faint odor�(0 30L0).____________ <br /> 45 <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. 770T.43673.06.0007 Date 11/19/04 Log of Well <br /> OS 1 B-16B.GPJ Figure <br /> LOG OF BOREHOLE <br /> (sheet 2 of 2) <br />