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Drilling Log <br />GROUNDWATER <br />TECHNOLOGY <br />Monitoring Well MW-i <br />Pro'. No 02070 0138 Location 575 Grant Line Road, Tracy, CA <br />Surface Elev Total Hole Depth 215 ft <br />Top of Casing Water Level Initial 12 ft <br />Fin Material 0'3 Sand <br />Drill Co SES, Inc <br />Rig/Core CME-55 Downhole/Soilt Spoon <br />Method 1-10110w Stem Auger/PIO <br />Permit ill 005901 Driv er Tyke Van 2andt <br />Checked By Ed Simonis <br />Log By Brian McA loon _ Date 05/02/95 <br />License No RG04422 <br />70 <br />mw-t 6 <br />-60 <br />-6 5 <br />AI <br /> 1 <br />Project Chevron - Tracy, Grant Line Owner Chevron USA Products Company <br />Screen. Dia 2 in Length 15 ft Type/Size Sch 40 PVC/0 020 in <br />Casing. Dia 2 in Length 5 ft Type Sch 40 PVC <br />See Site Map <br />For Boring Location <br />Diameter 8 in <br />Static 667 ft <br />COMMENTS <br />Description <br />(Color, Texture, Structure) <br />Trace < 10X. Little 10% to 20%. Some 20% to 35%. And 35% to 50% <br />E <br />'Lira Ta <br />tr) stow Count/ X Recovery CI 0 <br />ID <br />0 <br />CI) <br />^ <br />Top soil over sandy silty CLAY (20,40,40) dark brown, damp, no <br />hydrocarbon odor <br />Gravelly (up to 4 mm) clayey SILT (20,35,45) light gray grades to <br />sandy silty CLAY (20,30,50) moist, soft, hydrocarbon odor 0 <br />9 <br />-115 <br />9 <br />IV - <br />S <br />Static Water. 05/02/95 <br />Silty CLAY (30 70) brown damp to moist stilt, no hydrocarbon <br />Door <br />Encountered Water 05/02/95 (drillers call) <br />Sandy clayey SILT (15 40 45) light brown wet soft no <br />hydrocarbon odor <br />Sand % silty CLAY (10 40 501 brown clamo to moist no hydroca'bor <br />000. <br />Enc o born; instance moni1Oring <br />ML <br />Cl. <br />7 <br />ML <br />10- <br />12- <br />14- <br />116 11 <br />18- <br />20 - <br />Os <br />22 - <br />24 -)1 <br />06 /29,ig95 is,,,,09-me 53