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F <br /> t} , <br /> l <br /> Boring Numbers B'3 _ HORIZON ENVIRONMENTAL INC. <br /> ,fob Number: 1474.11 <br /> I <br /> Site Location: Beacon #474, Stockton, CA <br /> Drilling Company: Mitchell Drilling Environmental Drilling Method: Hollow Stem Auger <br /> Drilled By: Scott Sampling Method: Split—Spoon Sampler <br /> Date Drilled: 05/11/86 Total Depth: 45.5 Feet <br /> Logged By: G. Barker Depth To Groundwater: <br /> F `u m a c c <br /> m 4f a �_ O <br /> E •L o c v "'' U-5 <br /> ziQ aZ Soil 2 a; Well Comments <br /> f °.�' Description m ° v Construction <br /> CL o s m o aco 0 <br /> m t aai <br /> c a <br /> 23 18 18 0 <br /> 31 i' 23 SANDY SILT AND CLAY, very fine–grained ML <br /> cn 26 <br /> 31— stringers, reddish brown„ low plasticity, N/A <br /> damp, very stiff. <br /> 32 32 <br /> 33 33- <br /> 34— 34 <br /> o 22 <br /> 35 n 24 18 18 0 35 SILTY CLAY, light brown, medium plasticity, CL <br /> ul 23 dry, very stiff. <br /> 36 36 <br /> — <br /> 37— 37- <br /> 38— 38- <br /> 39— 39 <br /> 40 a 20 40 SILTY CLAY, some sand stringers, reddish I 23 18 18 0 brown to tan, low plasticity, dry, very ML <br /> N 25 stiff. <br /> a1 41 <br /> 42 42 <br /> 43 43- <br /> 4-4— 44 <br /> 45 v 0+ 6 6 0 45 some gray mottling. <br /> 4fi 46 <br /> Total depth = 45.5 feet bgs. <br /> 47 47- <br /> 48— 48- <br /> 49— 49- <br /> 50— 50- <br /> 51— 51- <br /> 52— 52- <br /> 53— 53- <br /> 54— 54- <br /> 55— 55- <br /> 56— 56 <br /> — <br /> 57— 57 <br /> . 58 58- <br /> 59— 59- <br /> 60 60 <br /> Page 2 Of 2 <br />