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SECOR International Incorporated Logged By: Date Drilled: Drilling Contractor Project Name: Method/Equipment: Well Number: CASCADE 7-ELEVEN#14117 HOLLOW STEM BC 8/14/03 DRILLING STOCKTON,CA CME-75 See"Legend to Logs"for Boring Surface Groundwater )' (Depth ft. Total Drive Dro sampling method, Diam.(in.): Elev.(ft.): P p classifications and laboratory 10 FIRST testin methods 8 50.0 140 30 Well t Description A w Construction ? o a u, 31 SAND(SP):very dark gray(10YR3/1);poorly graded; 16 medium grained sand;wet;medium dense;strong MW-8 0840 ?� hydrocarbon odor(0,100,0,0). -25' b' 30 32 SILTY CLAY(CL): (Gley 1,4/5%dark greenisha moist-stiff low lastici no h drocarbon or 0 0 40 60 NA SAND(SP):dark greenish gray(Gley 1,3/5G);wet; MW-8 0845 medium dense;medium grained sand poorly hydrocarbon odor(0,100,0,0). ;p y graded;slight -30' ' 35 36 SILTY CLAY(CL):dark greenish gray(Gley 1,4/1OGY), moist,stiff,high plasticity,slight hydrocarbon odor 202 002080 . MW-8 0850 SAND(SP):dark greenish gray Gley 1,3/SG);wet; -35' BENTONIT medium dense;medium grained sand;poorly graded;slight hydrocarbon odor(0,100,0,0). #3 SAND 2"DIA 0.02' 40 33 As above. SLOTTED 8 SCREEN MW-8 0855 -40' 45 28 As above. f 12 SANDY CLAY CL •dark greenish MW-8 0900 ( )• gr gray(Gley 1,4/SG), -45 moist,stiff,very-fine grained sand,low plasticity (0,30,10,60). The substrata descriptions above are generalized representations and based upon visual/manual classification of cuttings and/or samples obtained during drilling. Predominant material types shown on the log may contain different materials and the change from one predominant material type to another could be different than indicated. Descriptions on this log apply only at the specific locatio at the time of drilling and may not be representative of subsurface conditions at other locations or times. Project No. 77EL.14117.03.0502 Date 9/9/03 Log of Well MW-8 SB-I.GPJ Approved b LOG OF BOREHOLE PP y Figure (sheet 2 of 3)