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Boring Number, GP-4 _ HORIZON ENVIRONMENTAL INC. <br /> Job Number: 3001.12 <br /> Site Location: Discovery Chevrolet, Tracy, CA <br /> Drilling Company: V & W Drilling Drilling Method: Geoprobe <br /> is <br /> Drilled By: Larry & Earrick Sampling Method: Barrel Sampler With Liners <br /> Date Drilled: 02/18/98 Total Depth: 20 Feet <br /> Logged By: L. Smith Depth To Groundwater: 9.5 Feet <br /> a <br /> cECL <br /> jo_ <br /> OC.VC <br /> 7 . <br /> ut_ _ <br /> v o <br /> Soil ~ <br /> a gWello Description <br /> Comments <br /> o .1) Construction <br /> E m L N_ o a <br /> N — U <br /> As holt. <br /> 1 1 N/A Boring backfilled to surface <br /> grade with neat cement. <br /> 2 2 <br /> 3 3 <br /> 4 4 <br /> 5 to <br /> 24 14 8 5 SANDY CLAY, dark gray, moist, odor. CL <br /> 6 $ <br /> 7 7 <br /> 8 8 <br /> 9 9 <br /> a <br /> 10 N 24 18 2 10 Wet, slight odor. <br /> 11 11 <br /> F[t..�.i5 12 12 <br /> sl <br /> 13 13 <br /> 14 14 <br /> j 24 20 0 SILTY SAND, fine—grained, tan to SM <br /> 15 (n 15 yellow brown, moderate plasticity, wet. <br /> 1B 16 <br /> 17 17 <br /> 18 18 <br /> 19 19 <br /> 0 <br /> 20 I 24 15 0 20 <br /> Total depth 20 feet bgs. <br /> 21 21- <br /> 22— 22- <br /> 23— 23 <br /> 24 24- <br /> 25— 25- <br /> 26— 26- <br /> 27— 27- <br /> 28— 2a <br /> 2929 <br /> 30 <br /> Page i Of 1 <br />