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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 /> V M <br /> C E y C c <br /> ,j E <br /> c �_ O O <br /> > > <br /> ray 5 0 'c °u 5 ° o °o <br /> CLUZ 0 o � � a i; Soil 0 U m v Well <br /> o C Q o L m $ o c Description ` Construction Comments <br /> ° a <br /> Ul a. U K <br /> Asphalt <br /> Casing Installation Data: <br /> 2 2 <br /> 2—inch PVC <br /> ;'; 0.020—inch screen <br /> 3 3 <br /> �w - <br /> 4 4 <br /> 5 5 ' <br /> 6— w� 4 <br /> `O 7 18 16 0 6 CLAY, dark gray to greenish, high plasticity, CH <br /> rn 10 moist, stiff. <br /> 7 7 <br /> 9 6 9 CLAY, trace milt and very fine—grained sand, y — <br /> 10 0 12 18 16 0 10 dark gray to greenish, wat, moderate CL — <br /> plosticity, stiff. _ <br /> — <br /> r_ 12 12 — <br /> 13 13 — <br /> 14 14 <br /> Ln 5 — <br /> 15 9 18 14 0 15 Tan to brown. <br /> 16 16 = <br /> 17 S7 — <br /> 18 18 — <br /> 19 19 — <br /> 5 = <br /> 20 5 1s 0 sampie lost. <br /> 8 2 <br /> ........ ........ <br /> Total depth - 20 feat bgs. <br /> 21 21 <br /> 22 22 <br /> 23 23 <br /> 24 24 <br /> 25 25 <br /> 26 26 <br /> 27 27 <br /> 2s 28 <br /> ' 29 29 <br /> 30 30 <br /> Page 1 Of 1 <br />