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Drilling Log <br /> IT IT CORPORATION Monitoring Well MW--4 <br /> A Member of the IT Group <br /> Pro)ect 7-Eleven, SS# !4117 Owner 7-Eleven Inc See Site Map <br /> Location 2725 Country Club Blvd, Stockton, C.4 Proi No 779956 <br /> For Boring Location <br /> Surface Elev. Total Hole Depth 25 ft Diameter 8 in COMMENTS <br /> Top of Casing Water Level Initial 16 ft Static 75 1l <br /> Screen Dia Length Type/Size Sch 40/0 020 slot in <br /> Casing Dia Length Type Soh 40 PVC <br /> Fill Material #3 Sand Rig/Core 0-l0/S /it S oon <br /> Drill Co Gregq Dntlinq _ Method Hollow Stem Auger_ <br /> Doper Chris Log By Jon Philfpp Date 05/!4/99 Permit # <br /> Checked 9y Ed Simonls License No California RG#4422 <br /> v <br /> E a o > r ° Description <br /> a� a_ «,a a v CLU <br /> °'V a ° a E m �-' N (Color, Texture, Structure) <br /> U N m x U) Trace < IDX, Littre IDX to 20%, Some 20% to 35%. And 35% to 50% <br /> _2 <br /> Asphalt <br /> 2 < < <br /> < < <br /> 4 CL Silty CLAY (25,75) dark greenish gray dry, very stiff, no <br /> c < MK-4@5 3 hydrocarbon odor <br /> 6 3 <br /> 5 <br /> 8 <br /> � Static <br /> M@-4@IO 4 <br /> 9 Clayey fine SAND (30,70) dark greenish gray, slightly moist, stiff <br /> 10 — SC but crumbly faint hydrocarbon odor <br /> 12 <br /> MWAM 4 <br /> 14 5 Clayey SILT (25,75) mottled brown and olive green, moist to wet, <br /> aL stiff but crumbly, mild hydrocarbon odor <br /> 16 — Groundwater Encountered 5/14/99, @810 hrs <br /> 18 = <br /> _ <br /> NW-4@20 17 Medium SAND (fOfl) greenish gray, wet, loose, moderate <br /> 19 hydrocarbon odor_ <br /> 20 — 22 <br /> SP <br /> 22 — <br /> 24 — Clayey medium SAND (15,85) medium alive green, wet loose, mild <br /> SC hydrocarbon odor <br /> 26 <br /> OB/r6/i999 Sttaog-Har 99 Page I of 1 <br />