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Marley Cooling Tower Log of Boring 0. TW-2 <br /> Do Method: Rotary Sonic Boring Location:Stockton, CA <br /> Drilling Equipment: Sonic <br /> Drilling Contractor: Resonant Sonic International Elevation (Ground Surface): TBD <br /> Sampling Method: Continuous Core Elevation (Top of Casing): 28.62 <br /> Sample Interval Depth to First Water(ft.bgs): 59.74 s <br /> Borehole Diameter: 6.625 inches Depth to Static Water(ft. bgs): 59.74 <br /> Borehole Total Depth:85 feet Monitoring Well Construction <br /> Date Started: 5/28/03 Type of Surface Seal: Concrete <br /> Date Completed: 5/29/03 Blank Casing Type/Size: SCH 40 PVC,2-in ID Top of Screen(ft.bgs): 60 ft. bgs. <br /> Logged B Tony Mikacich Screen Type/Size: SCH 40 PVC,2-in ID Bottom of Screen(ft.bgs): 85 ft.bgs. <br /> gg y' Screen Slot Size: 0.020 inch Type of Sand Pack: #3 <br /> N � <br /> W C <br /> L m a > m y Well <br /> F' Q.o d <br /> a <br /> Jo <br /> Soil Description <br /> ' <br /> Construction <br /> N o E <br /> ? d N 0yca <br /> M p <br /> m <br /> 3 N m <br /> w <br /> 0 Crab ASPHALT:Asphalt-4"thick, road base material-6"thick, 6 to S inch thick <br /> hand augered to 5 ft.bgs to clear utilities. concrete pad <br /> with traffic <br /> SM: Silty Sand,yellow brown(10YR5/6),moist,fine sand, rated vault <br /> -5 25%silt, loose. <br /> 0 -10 <br /> 5 -15 No additional soils collected during the drilling of TW-2. <br /> !0 -20 2-inch diameter <br /> Schedule 40 <br /> PVC blank <br /> 15 -25 <br /> 10 -30 <br /> /7 <br /> IS -35 <br /> 10 -40 Type II/III <br /> Portland Neat <br /> / Cement <br /> 15 -45 j <br /> I <br /> i0 50 <br /> I <br /> Project No. 3850244.020101 Log of Boring: TW-2 <br /> MWH Page 1 of 2 <br /> © <br />