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Drilling Log IT IT CORPORATION ' Monitoring. Well MW-11 A Member of the IT Group 7-Eleven SS# 14117 Owner 7-Eleven Inc. See Site Map Project For Boring Location " Location .2725 Country Club Blvd", Stockton, CA _ Pro j.-No. 779966 Surface Dev. Total Hole Depth 30 ft" Diameter 8 in. COMMENTS- Top of Casing Water Levet Initial 18 ft. Static 7"8 ft.. Screen: Dia 2 in" Length 20 ft. - Type/Size Sch. 40/0.020 slot in. - .. Casing: Dia 2 in. Length 10 ft. Type Sch. 40 PVC _ Fill Material #3 Sand Rig/Core D-10/Split Spoon Drill Co. Gregq Drilling Method Hoilow Stem AUer. �t 'Driller Chris Log By Jon Philipp --- Date 05/1.3/99 Permit# Checked By .Ed Simons License No. California R6114422 « N ... =v of vR o !E U Description U u CL!E a_ o a Q m +ate cn (Color,.Texture, Structure) , ro o a co U Trace < 10%, Litt. le 10% to 20%, Some 20% to 35%, And 35% to 50% UU1 m ae � 0 0 - ASH 2' Asphalt over sandy GRAVEL (30,70): brown,'dry, loose, no < < • GW hydrocarbon. }" 2 v Silty CLAY (40,60): mottled dark gray, medium brown and olive, < < mostly dry, slightly plastic, no hydrocarbon odor. 4 < < CL < < 0 Mw-05' S d y" 6 < 5 Sandy, pebbly CLAY .(10,30,60): brown, slightly moist,.stiff, no. 9 hydrocarbon odor. 8 r Static 5/14/99: 0 MW-1@I0• 4 1 5 Clayey SILT (40,60): olive brown, slightly moist,.stiff, no 10 g ��^ hydrocarbon odor. , 12 14 = 3 ' Hw-1@15' s Clayey SILT (10,90): mottled brown:and green, loose,.faint 9 ML hydrocarbon odor 16 — 4 18 = Groundwater encountered, 5/13/99 @930 hrs.. = 15 MW-I@20' 7 = 15 - 20 _ taw-1@2r 20 Medium SAND (100): gray, wet, loose, subrounded to subangular, no 15 hydrocarbon odor, NO RECOVERY (heaving sand). 20 w 22 SP M . 24 = 75 MW-1@25' 18 a = 37 Medium SAND (100): green/gray, wet, loose, faint hydrocarbon odor 26 = with clay stringers (100). 28 20 Mw-1@30' 15 ML 6 W44 18 Clayey SILT (10,90): medium blue green, ri oderately loose, moist, :19. — 30 35 .no hydrocarbon odor: �L 32 - . oer sil9s9 rtnio9-Marcs _ Page: I of 1 .