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Boring Number, MW-4 <br /> Job Number: 3001.11 HORIZON ENVIRONMENTAL INC <br /> Site Location: Discovery Chevrolet, Tracy, CA <br /> Drilling Company: Mitchell Drilling Environmental Drilling Method: 8—inch Hollow Stem Auger <br /> Drilled By: Scott Sampling Method: Split—Spoon Sampler <br /> Date Drilled: 04/03/97 Total Depth: 20 Feet <br /> Logged By: G. Barker Depth To Groundwater: 9 Feet <br /> n a. c c <br /> c _ 0 0 <br /> m 3 C 0 C 6 U O <br /> C� z L) .Q SoilUIx a Well <br /> C <br /> C a o w Description r 4 Well <br /> Comments <br /> t m o c <br /> E m _ V)— v 0. <br /> V) c a U <br /> Asphalt (4'). <br /> 1 1 <br /> ' Casing Installation Data: <br /> 2 2 t <br /> 2—inch PVC <br /> 3 <br /> . 4".. 0.020—inch screen <br /> 3 <br /> 4 4- <br /> 5— <br /> 5 5- <br /> 6— u� 4 <br /> 40 7 18 16 0 6 CLAY, dark gray to greenish, high plasticity, <br /> w 10 moist, stiff. CN <br /> 7 7 <br /> 8 8 — <br /> 8 6 9 CLAY, trace silt and very fine—grained sand, <br /> 10 (4 12 18 76 0 10 dark (4ray to greenish, wet, moderate CL — <br /> 0 plasticity, stiff. —_ <br /> 11 11 — <br /> 12 12- <br /> 13- <br /> 14— <br /> 213 14 14 — <br /> 5 <br /> 15 ai 69 18 14 0 15 Tan to brawn. — <br /> 16 16 — <br /> 17 17 — <br /> 18 <br /> 18- <br /> 5 <br /> 8 5 <br /> 2D 5 18 o Sample lost. _ <br /> 8 2 <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 28- <br /> 29- <br /> 29 <br /> 828 29 <br /> 30 30 <br /> Page 1 Of 1 <br />