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Drilling dog <br /> ITIT CORPORATION Monitoring Well MW-4 <br /> A Member of the Ir Group <br /> Proiect 7-Eleven SS# 14117 Owner 7-Eleven, Inc. See Site Map <br /> Location 2725 Country Club Blvd., Stockton, CA Proj. No. 779966 For.Boring Location <br /> Surface Elev. Total Hole Depth 25 ft- Diameter 8 in. COMMENTS,- <br /> Top <br /> OMMENTS:Top of Casing Water Level Initial /0 ft- Static 7.5 ft. <br /> Screen: Dia Length Type/Size Sch. 40/0.020 slot in. <br /> Casing:Dia Length Type SCh. 40 PVC <br /> Fill Material #3 Sand Rig/Core D-10/Split Spoon <br /> Drill Co. Gregq Drilling Method Holtow Stem Auger <br /> Driller Chris Log By Jon Philipp Date 05/14/99 Permit # <br /> Checked By Ed Simonis License No- California RGA4422 <br /> tr, E , Description <br /> aw w Q1 n a LS o a o U <br /> o - E n Q d '0� (Color, Texture, Structure) <br /> 0 <br /> n m o ¢ <br /> rn Trace < 10%, Little 10% to 20%. Some 20% to 35%. Aral 35% to 50% <br /> v x <br /> —2 <br /> s Asphalt. <br /> 2 < < <br /> < < I <br /> 4 ` ` CL Silty CLAY (25,75): dark greenish gray, dry, very stilt, no <br /> < < HH-4@5' 3 hydrocarbon odor. <br /> 6 3 <br /> 5 <br /> 8 i static. <br /> HW-4@10' 4 <br /> g Clayey fine SAND (30,70): dark greenish gray, slightly moist, stiff <br /> 10 — SC but crumbly, faint hydrocarbon odor. <br /> 12 <br /> MW-4@15' 4 <br /> 14 =_ s Clayey SILT (25,75): mottled brown and olive green, moist to wet, <br /> 8ML stiff but crumbly, mild hydrocarbon odor- <br /> 16 = Q Groundwater Encountered 5/14/99, @810 hrs. <br /> 18 <br /> Hu-4@zo n Medium SAND (100): greenish gray, wet, loose, moderate <br /> 1s hydrocarbon odor. <br /> 20 = 22 <br /> SP <br /> 22 <br /> HN-4@25' <br /> 24 — Clayey medium SAND (15.85): medium olive green, wet, loose, mild <br /> Sc hydrocarbon odor. <br /> 26 <br /> OE/t6/19991ithiog-Ma ,99 Page: i of 1 <br />