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Drilling Log <br /> ITIT CORPORATION Monitoring Well MW-5A <br /> A Member of the IT Group <br /> 7-Eleven, SS# 19976 7-Eleven, Inc. See Site Map <br /> Prosect Owner <br /> Location 1399 N. Main Street, Manteca CA Proi. No. 779956 For Boring Location <br /> Surface Elev. 3218 ft. Total Hole Depth 50 ft. Diameter 8 in. COMMENTS: <br /> Top of Casing 31.48 ft. Water Level Initial 20 ft. Static 2122 ft. <br /> Screen:Dia 2 in. Length 5 ft. Type/Size SCh. 40 PVC 0.020 in. <br /> Casing: Dia 2 in. Length 45 ft. Type Sch. 40 PVC <br /> Fill Material #3 Sand/Neat Cement Rig/Core M-11/55/Split Spoon <br /> Drill Co. Gregg Drilling Method Hollow Stem Auger <br /> Driller Chris St. Pierre Log By Bob Butler Date 05/11/99 Permit # 016655 <br /> Checked By Ed Simonis License No. California R6#4422 <br /> C <br /> � v;p -)taE o 0, C-) <br /> Description_v� ao U E E3 u - <br /> (Color, Texture, Structure) <br /> m j Trace < 10%, Little 10% to 20%. Some 20% to 35%; And 35% to 50% <br /> -2 <br /> 0 0 ASP 2" of Asphalt over base coarse sandy gravel. <br /> .O'015 GW <br /> 2 < < Fine to medium SAND: brown, dry, loose, moist, subrounded, no <br /> 4t 4t <br /> < < hydrocarbon odor. <br /> 4 ` ` <br /> 5 MW-5A@5' 8 <br /> < < s sw <br /> to <br /> 6 ` <br /> 8 < <br /> 2 MW-5010' 8 <br /> < < 10 <br /> 10 11 ML Very fine SAND and SILT (40,60): olive gray, moist to wet, soft, no <br /> < < hydrocarbon odor. <br /> IZ <br /> 14 < < 0 MW-5A@15' <br /> 5 CL <br /> < < 16 Silty CLAY (30,70): olive gray and reddish brown, moist to wet, <br /> 16 soft, semi-plastic, no hydrocarbon odor. <br /> < < <br /> 18 < < <br /> < < 1.5 MW-5A@20' 3 <br /> 20 5 <br /> < < 10 Clayey, sandy SILT (20,30,50): greenish gray, saturated, no <br /> hydrocarbon odor. <br /> < < ML <br /> 22 < < <br /> 24 �L3 HW-5A@25' S owl <br /> 07122119991itwog-Mar,99 Page: i of 2 <br />