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Drilling Log <br /> IT CORPORATION Monitoring Well MW--1 <br /> A Member of the I T Graig <br /> Project 7-Eleven, SS# f4f17 T Owner 7-Eleven. Inc See Site Map <br /> 2725 Countr Club Blvd Stockton CA 779966 For Boring Location <br /> Location Proj No <br /> Surface Elev Total Hole Depth 30 ft Diameter 8 in COMMENTS <br /> Top of Casing Water Level Initial 18 ft Static 78 ft <br /> Screen* Dia 2 in Length 20 ft Type/Size Sch 4010 020 21_01 in_ <br /> Casing-Dia 2 in Length 10 ft Type Sch 40 PVC <br /> FA Material #3 Sand Rtg/Core 0-101sofit Spoon <br /> Drip Co Grega_ Drilling _ Method Hollow Stem Auger _ <br /> Driller Chris Log By Jon Philipp Date 0510199 Permit tp <br /> Checked By Ed Stmonis License No Cafifornia RG#4422 <br /> H <br /> o Description <br /> E ai 'o rn <br /> m_ X a IL a Oa s ID N (Color, Texture, Structure) <br /> W o QCa (_l <br /> U 1n m <br /> 0 o s 2' Asphalt over sandy GRAVEL (30,70) brown, dry, loose, no <br /> c < Gw hydrocarbon <br /> 2 { Silty CLAY (40,60) mottled dark gray, medium brown and olive, <br /> it mostly dry, slightly plastic, no hydrocarbon odor <br /> 4 < < CL <br /> < < 0 NN-4Q5' S <br /> 6 $ Sandy, pebbly CLAY (10,30,60) brown slightly moist, stiff no <br /> < c g <br /> hydrocarbon odor <br /> 8 Static 5114199 <br /> o HN-eta 4 <br /> 5 Clayey SILT (40,60) olive brown, slightly moist, stiff, no <br /> i/ <br /> 10 g hydrocarbon odor <br /> 12 — <br /> 14 — 3 Nw-1e15 6 Clayey SILT (10.90) mottled brawn and green, loose, faint <br /> sML hydrocarbon odor (?) <br /> 16 — <br /> 18 = Groundwater Encountered, 5113199 L0930 hrs <br /> 15 HM-1920 l <br /> — 15 <br /> 20 = Hl1-i9zr 20 Medium SAND (100) gray, wet, loose subrounded to subangular, no <br /> _ 7 hydrocarbon odor, NO RECOVERY (heaving sand) <br /> — IS <br /> 22 - _ 20 <br /> SP <br /> - 24 — = 75 NW-1@29 14 <br /> — za <br /> 37 X Medium SAND (100) green/gray, wet, loose faint hydrocarbon odor <br /> 26 with clay stringers (100) <br /> 28 <br /> 20 !ar-�3o '5 IMLIgClayey SILT (10,90) medium blue green moderately loose, moist, <br /> - 30 - 135 no hydrocarbon odor <br /> 32 <br /> 08/t8rt999litNog-Har 99 Page I of i <br />