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Boring Numbers CB-1 _ HORIZON ENVIRONMENTAL INC <br /> Job Number 149411 <br /> Site Location Beacon {494, Stockton, CA <br /> Drilling Company Mitchell Drilling Environmental Drilling Method 8' Hollow Stem Auger <br /> Drilled By Bart Sampling Method Split—Spoon Sampler <br /> Date Drilled 06/12/95 Total Depth 65 Feet <br /> Logged By G Barker Depth To Groundwater <br /> na a oo <br /> c a <br /> v _ <br /> .0 a Z C o 5 So n 022 2 <br /> a <br /> $ Soil m <br /> Well <br /> CL <br /> Commentsi <br /> d E Description Construction <br /> 00 <br /> mo W_ n <br /> a <br /> n V Of <br /> a <br /> 29 18 18 0 SANDY SILT, very fine— to fine—grained, ML <br /> 31 i 32 31 brawn, no plasticity, very hard, dry <br /> m <br /> U <br /> 32 32 <br /> 33 33 <br /> 34 34In <br /> --- �----35— 27SILTY CLAY, trace sand, very—fine grained, <br /> m 30 18 18 87 35 brown. <br /> ro n, iow to medium plasticity, very CL <br /> 36 c> 34 36 dry <br /> 37 37 <br /> 38 38 <br /> 39 39 <br /> 40 24 40 <br /> 27 18 18 23 <br /> • 41 �i 35 41 <br /> 42 42 <br /> 43 43 <br /> 44 44 <br /> w29 <br /> -45— i 45 <br /> 30 18 18 10 <br /> m <br /> 46 32 46 <br /> 47 47 <br /> 48 48-- <br /> 49— <br /> 8 49 49 <br /> 0 <br /> 50 N 15 5o SANDY SILT, very fine— to fine—grained, <br /> m 24 18 18 10 no plasticity, hard, dry ML <br /> 51 V 24 51 <br /> 52 52 <br /> 53 53 <br /> 54 54 <br /> in <br /> 55 in 30 30 18 18 0 55 SILTY CLAY, brown, madium plasticity, CL <br /> m very hard, dry <br /> 56 30 56 <br /> 57 57 <br /> 58 58 <br /> SILT, some clay, trace very fine--grained <br /> 59 59 sand, brown, low plasticity, very ML <br /> 60 60 hard, dry <br /> (Boring Continued On Next Page) Page 2 Of 3 <br />