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Drilling Log <br /> ITIT CORPORATION Monitoring Welf MW-1 <br /> A Member of the IT Grasp <br /> project 7-Eleven, SSS 14117 owner 7-Eleven, Inc. See Site map <br /> For Boring Location <br /> Location 2725 Country Club Blvd, Stockton, CA Proj.No. 779966 <br /> Surface E(ev. Total Hole Depth 30 ft. Diameter 8 in. COMMENTS: <br /> Top of Casing Water Level Initial 18 ft. Static 7.8 ft. <br /> Screen:Ola 2 in. Length 20 ft. Type/Size Sch. 40/0.020 slot in. <br /> Casing:Dia 2 In. Length t0 ft. Type Sch. 40 PVC <br /> Fill Material #3 Sand Rig/Core 0-10/Sant Spoon <br /> Drill Co. 6iegq D(dling Method Hollow Stem Auger <br /> Griper Chris Log By Jon Philipp Date 05/13/99 Permit # <br /> Checked By Ed Simonfs License No. California R604422 <br /> � 0 � T N <br /> o ` a t 0 Description <br /> aw 4,.!! o a n toi �°, a o v <br /> m„ 3 n a s a '°-� (Color, Texture, Structure) <br /> E E 3r cc <br /> U 13 m x W. Trace < 10%, Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> —2 <br /> 0 s 2"-Asphalt over sandy GRAVEL (30,70): brown, dry, loose, no <br /> < < :o 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 HN-K 5 <br /> 6 � s Sandy,.pebbly CLAY (10,30,60): brown, slightly moist, stiff, no <br /> hydrocarbon odor. <br /> 8 Static 5/14/99. <br /> 0 KW-t@a' 4 Clayey SILT (40,60): olive brown, slightly moist, stiff, no <br /> 10 g X/H hydrocarbon odor. <br /> 12 <br /> 14 = 3 """>@� s Clayey SILT (10,90): mottled brown and green, loose, faint <br /> Ffjff <br /> _ 9 MLhydrocarbon odor16 <br /> 18 =__ Groundwater Encountered, 5/13/99 0930 hrs. <br /> 15 <br /> NW-1@20, 7 <br /> —_ 15 <br /> 20- 20 Medium SAND- (100): gray, wet, loose, subrounded to subangular, no <br /> - 7 <br /> 15 hydrocarbon odor,NO RECOVERY (heaving sand). <br /> 22 = 20 <br /> SP <br /> 24 = 75 Nw-t@2s 16 <br /> 24 <br /> 37 Medium SAND (100): green/gray, wet, loose, faint hydrocarbon odor <br /> 26 — with clay stringers (100). <br /> 28. _ <br /> • 20 NW-1@30' 15 ML <br /> to Clayey SILT (10,90): medium blue green, moderately loose, moist, <br /> 30 35 no hydrocarbon odor. <br /> - 32 - <br /> 08/16/4999 UtNog-Har,99 Page: 1 of I <br />