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Drilling Log <br /> ❑® GROUNDWATER Monitoring Well MW-9 <br /> 1:11:1E] TECHNOLOGY <br /> Prosect Chevron-W Benjamin Holt, Stockton Owner Chevron USA Products Comoany See Bore Map <br /> Location 2905 W Pros. No <br /> Ben amrn Holt Dr Stockton CA _ 02070 0017 For Boring Location <br /> Surface Eley Total Hole Depth 30 ft Diameter 8 i COMMENTS <br /> Top of Casing Water Level Initial 17 ft Static <br /> Screen: Ola 2 In Length 20 ft Type/Size 0 020 In --10 away from Plymouth Drive sign in <br /> Casing Dia 2 In Length 10 ft Type SCh 40 PVC planter <br /> Fill Material 03 Sand Rig/Core CME-75/Spilt Spoon _ <br /> Drill Co SES, Inc Method Hollow Stem Auger/PIQ <br /> Driller Mike Duffy _ Log By Jason Fedota Date 06/20/94 Permit # <br /> Checked By Ed Srmcnts License No RGi04422 <br /> c d � a N <br /> ° '" m2 <br /> .. _� of �, o sin Description <br /> ZX r 0.2 , n a V V Q p U <br /> V_ 3: O a CLE 3: u °-+ 0 (Color, Texture, Structure) <br /> v 10 o ai Trace < 10%, Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br /> -2 <br /> 0 Topsail over soft silty sandy CLAY <br /> 2 < < CL <br /> 0 - 4 < < <br /> Light brown, some orange, clayey silty very fine SAND (10,40,50) <br /> < < p Mw--9 2 (dry, soft, no hydrocarbon odor roots) <br /> -5 4 <br /> SM <br /> 8 <br /> Light gray silty fine SAN[ (15 85) (well sorted dry, loose, no <br /> 10 2 MW-9 4 hydrocarbon odor) <br /> -1d 5 <br /> 6 <br /> 5P <br /> 12 <br /> 14 = Light brawn/gray-orange/blue-green mottled sandy silty CLAY <br /> 40 Mw-9 3 (10,40,50) (moist, moderate hydrocarbon odor) <br /> 16 — -15 3 <br /> 6 <br /> Encountered water, 06/20/94 10 36am <br /> 18 = <br /> CL <br /> 20 2 MW-9 4 <br /> _ -20 6 Dark brown-orange and gray mottled sandy silty CLAY (20 30 50) <br /> 8 (moist no hydrocarbon odor) <br /> 22 <br /> 24 (water up hammer to 17) <br /> 07/21/1994 IEthiog-mar93 <br /> Page t of 2 <br />