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Drilling Log <br /> ITIT CORPORATION Monitoring Well MW--4 <br /> j, A Member of the I7•Group <br /> Project 7-Eleven, SS# 14117 Owner 7-Eleven, Inc. See Site Map <br /> 2725 Country Club Blvd., Stockton, CA 779966 For.Boring Location <br /> Location Proj.No. <br /> Surface Elev. Total Hole Depth 25 ft- Diameter 8 in. COMMENrS- <br /> Top of Casing Water Level Initial t6 ft Static 75 ft. <br /> Screen:Dia Length Type/Size Sch-"•40/0.020'slot in. <br /> Casing:Dia Length Type Sch 40 PVC <br /> Fill Material ,f`3 Sand Rig/Core 0-10/Split Spoon <br /> Orin Co. Greqq DrXinq Method Hollow Stem Auger <br /> Driller Chris Log By Jon Philipp Date 05/14/99 Permit I <br /> Checked By Ed SimOnis License No. California RGf4422 <br /> C t] ai <br /> a <br /> 0 �. C U h: ;, of v o > tQ �' Description <br /> OL o U <br /> ov 3 E a n E 3 -' N (Color, Texture, Structure) <br /> (D o a n <br /> m X Z) Trace < IDX, Little 10% to 20%, Some 20% to 35X. And 35% to 50% <br /> U �n <br /> _2 <br /> 0 Asphalt. <br /> 2 < <br /> 4 ` ` CL Silty CLAY (25,75). dark greenish gray, dry, very stiff, no <br /> NW-4@5' 3 hydrocarbon odor. <br /> 6 3 <br /> s <br /> Static. <br /> 8 <br /> NK-4@10' 4 <br /> 5 s Clayey fine SAND (30,70): dark greenish gray.'slightly <br /> moist, stiff10 Sc but crumbly, faint hydrocarbon <br /> odor. <br /> 12 = <br /> HN-4@I5' 4 <br /> 14 = 5 Clayey SILT (25,75): mottled brown and olive green, moist to wet, <br /> $ ML stiff but crumbly,mild hydrocarbon odor. <br /> 16 — Q Groundwater Encountered 5/14/99, @810 hrs. <br /> IU — NN-4@20' i7 Medium SAND (100): greenish gray, wet, loose. moderate <br /> fs hydrocarbon odor. <br /> 20 = zz <br /> SP <br /> HH-4@ZS <br /> -24-- = Clayey medium SAND (15,85): medium olive green, wet, loose, mild <br /> Sc hydrocarbon odor. <br /> - 26 - <br /> Oft/16/1999 fithlog-mar.9 <br /> 6osrlsris8acthlo9-Har.ss Page: t of I <br />