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Drilling Log <br /> ITIT CORPORATION Monitoring Well MW-1 <br /> A Member of the IT Group <br /> 7-Eleven SSA 14117 7-Eleven Inc. See Site Map <br /> Project Owner For Boring Location <br /> Location 2725 Country Club Blvd., Stockton, CA Proi. No. 779966 <br /> Surface Elev. Total Hole Depth 30 ft. Diameter 8 in. COMMENTS: <br /> Top of Casing Water Level Initial 18 ft. Static 7-8 ft. <br /> Screen: Oia 2 in- Length 20 ft. Type/Size Sch. 4010.02.0 slot in. <br /> Casing: Dia 2 in- Length 10 ft. Type Sch. 40 PVC <br /> Fig Material #3 Sand Rig/Core D-10/Split Spoon <br /> Drill Co. Gregg Drilling Method Hollow Stem Auger <br /> Driller Chris Log By Jon Philipp Date 05/13/99 Permit # <br /> Checked 8y Ed Simonis License No. California RG#4422 <br /> C: O V; <br /> ` <br /> n: 15 > <br /> -o� rn <br /> Description <br /> aT a ao v <br /> 3 a s (Color, Texture, Structure) <br /> v u <br /> m x (n Trace < 10%, Little 10% to 20%, Some 20% to 35%. And 35% to 50% <br /> 7 <br /> —2 <br /> 0r 0-!" NLS2" Asphalt over sandy GRAVEL (30,70): brown, dry, loose, no <br /> Gw hydrocarbon. <br /> 2 < < Silty CLAY (40,60): mottled dark gray, medium brown and olive, <br /> mostly 'dry, slightly plastic, no hydrocarbon odor. <br /> 4 CL <br /> 0 NH-I@5" 5 <br /> 6 c � 9 Sandy, pebbly CLAY (10,30,60): brown, slightly moist, stiff, no <br /> hydrocarbon odor. <br /> 8 l Static 5/14/99. <br /> 0 HH-1010' 4 Clayey SILT (40,60): olive brown, slightly moist, stiff, no <br /> 5 �r <br /> 10 8 hydrocarbon odor- <br /> 12 — <br /> 14 — 3 HH-1@15' 6 Clayey SILT (10,90): mottled brown and green, loose, faint <br /> g ML hydrocarbon odor (?). <br /> 16 <br /> 18 =_ Groundwater Encountered, 5/13/99 @930 hrs. <br /> 15 NN-1@20' T <br /> 20 = NN-I@2f 20 Medium SAND (100): gray, wet, loose, subrodnded to subangular, no <br /> 15 hydrocarbon odor, NO RECOVERY (heaving sand). <br /> 22 = 20 <br /> SP <br /> 24 = 75 mw-1@25' <br /> 16 <br /> 24 <br /> 37. Medium SAND 000): green/gray, wet, loose, faint hydrocarbon odor <br /> 26 — with clay stringers (100). <br /> 28 = <br /> 20 HH-1@30' 15 Ml. <br /> t8 Clayey SILT (10,90): medium blue green, moderately loose, moist, <br /> 30 35 no hydrocarbon-odor. <br /> 32 <br /> osnsilsgs rthlog-aar,ss Page: I of I <br />