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PARCADIS! Well Destruction Log Project Name: Site Address-. Project No.: -- -- Alden Park Site Tracy,San Joaquin County,California 300060301 B0048305.0000.00003 Well ID: MW-11 Well Installation Permit ID: N/A Drilling Co. Penecore Well Destruction Permit to: TBD Well Diameter(inches): 4 Begin Date/Time: TBD Type of Well: Monitoring Well End Daterrime: TBD Depth to Water(ft bloc): 10-17 (measured on 4127/87)Latitude: 37.7349051 Longitude: -121.438499 Total Well Depth: 22 feet Ground Surface Elevation: screen Interval: 7.0 to 22 feet bgs Top of Casing Elevation: 55.09 feet NAVD'88 Destruction Method: Pressure grout Total Depth Overdrill(ft bgs): N/A Drill Bit Size: Borehole Diameter: 8 inches Tremie Pipe used YES Depth of Tremie Pipe(feet bgs): Type of Grout: Neat Cement Volume of Displaced Water(gallons): Required Grout Ratio: 5 gals of water for every 94-Pound sack of cement Amount of Portland Cement(bags): 1 Estimated Amount of Grout needed to Fill Vold Space: 7.0 gallons Size of Cement Bags(lbs.): 47 Grout Calculations: lWell Diameter: Casing Volume/ft: Amount of Water(gallons): 3 CVgm'h)(748 gal7cu 8) 2 0.183 Pressure Test(PSI): 25 Time: 5 minutes or CV=nf(D2)712 in/ftJ'h(7.48 gabfl') 4 0.652 Surface Completion: Concrete Assume 25%porosity for sand pack 6 1.468 Grout Calculation: Formula=rtr'x Length radius Volume in Convert Volume in Porosity of Total Grout Volume for Well radius squared Length cubic feet to Gallons -----------> Gallons Sand Pack Well Destruction Segment n (feet) (feet`) (feet) (feet) (gallons) (gallons) (%) (gallons) solid casing 11 0.08 0.01 3 0.07 7.48 0.5 - 0.5 gallons screen interval n 0.33 0.11 10 3.49 26.1 0.25 6.5 gallons 7.0 gallons 0 ARCADIS Well Destruction Log Project Name: Site Address: Project No.: Alden Park Site Tracy,San Joaquin County,California 30006030/B0048305.0000.00003 Well ID: MW-12 Well Installation Permit ID: N/A Drilling Co. Penecore Well Destruction Permit ID: TBD Well Diameter(inches): 4 Begin Dale/Time: TBD Type of Well: Monitoring Well End Dalerrime: TBD Depth to Water(ft bloc): 8-DRY (measured on 4/27/87)Latitude: 37.7342792 Longitude: -121.439862 Total Well Depth: 20 feet Ground Surface Elevation: Screen Interval: 5.0 to 20 feet bgs Top of Casing Elevation: 53.67 feet NAVD'86 Destruction Method: Pressure grout Total Depth Overdrill(ft bgs): N/A Drill Bit Size: Borehole Diameter: 8 inches Tremie Pipe used YES Depth of Tremie Pipe(feet bgs): Type of Grout: Neat Cement Volume of Displaced Water(gallons): Required Grout Ratio: 6 gals of water for every 94-pound sack of cement Amount of Portland Cement(bags): 1 Estimated Amount of Grout needed to Fill Vold Space: 7.0 gallons Sive of Cement Bags(lbs.): 47 Grout Calculations: Well Diameter: Casing Volume/ft: Amount of Water(gallons): 3 CV=(m2h)(7.48 gal7ou R) 2 0.163 Pressure Test(PSI): 25 Time: 5minutes aCV=rr((D2)112iNR)'h(7.46ga1/B') 4 0.652 Surface Completion: Concrete Assume 25%porosity for sand pack 6 1.468 Grout Calculation: Formula=nrz x Length radius Volume in Convert Volume in Porosity of Total Grout Volume for Well radius squared Length cubic feet to Gallons -----------> Gallons Sand Pack Well Destruction Segment n (feet) (feet`) (feet) (feet') (gallons) (gallons) N (gallons) solid casing n 0.08 0.01 3 0.07 7.48 0.5 - 0.5 gallons screen interval n 0.33 0.11 10 3.49 26.1 0.25 6.5 gallons 7.0 gallons