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6AARCADIS Well Destruction Log <br /> Project Name: Site Address: Project No.: <br /> Alden Park Site Tracy,San Joaquin County,California 30006030/B0048305.0000.00003 <br /> Well ID: MW-14 Well Installation Permit ID: N/A <br /> Drilling Co. penecom Well Destruction Permit ID: TBD <br /> Well Diameter(inches): 4 Begin Daterrime: TBD <br /> Type of Well: Monitoring Well End Dateriime: TBD <br /> Depth to Water(8 bioc): 9-16 (measured on 4/28/87)Lathude: 37.7345279 Longitude: -121.442 <br /> Total Well Depth: 19 feet Ground Surface Elevation: <br /> Screen Interval: 4.0 to 19 feet b s Top of Casing Elevation: 54.17 feet(NAVD'88 <br /> Destruction Method: Pressure grout <br /> Total Depth Overdrill(n bgs): N/A Drill Bit Size: Borehole Diameter: 8 inches <br /> Tremle Pipe used YES Depth of Tremle Pipe(feet bgs): <br /> Type of Grout: Neat Cement Volume of Displaced Water(gallons): <br /> Required Grout Ratio: 6 gals of water for every 94-pound sack of cement <br /> Amount of Portland Cement(bags): 1 Estimated Amount of Grout needed to Fill Void Space: 7.0.gallons <br /> Size of Cement Bags(lbs.): 47 Grout Calculations: Well Diameter: Casing Volumelfl: <br /> Amount of Water(gallons): 3 CV{mzh)(7.48 gallcu R) 2 0.163 <br /> Pressure Test(PSI): 25 Time: 5 minutes or cV=rr((D12)/12 in/R)rh(7.46 gaUR') 4 0.652 <br /> Surface Completion: Concrete Assume 25%porosity for sand pack 8 1.468 <br /> Grout Calculation: Formula=nlx x Length <br /> radius Volume in Convert Volume in Porosity of Total Grout Volume for <br /> Well radius squared Length cubic feet to Gallons -----------> Gallons Sand Pack Well Destruction <br /> Segment n (feet) (feet) (feet) (feet) (gallons) (gallons) M (gallons) <br /> solid casing n 0.08 0.01 3 0.07 7.48 0.5 — 0.5 gallons <br /> screen interval n 0.33 0.11_ 10 3.49 _26.1 0.25 6.5 gallons <br /> 7.0 gallons <br />