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Y`F.NewFields1E CALCULATION COVER SHEET <br /> Client Newmont Preparers JEP 10/31/19 <br /> Project Squaw Gulch VLF2 Phase 3 Checked: JNM 10/31/19 <br /> Title Sizing Revision A <br /> CALCULATION OBJECTIVE <br /> 1. Design high volume solution collection piping system for VLF2 Phase 3,accounting for ore loading effects. Given <br /> maximum volumetric flow rate= 17,000 gpm, solution application rate=0.0055 gpm/ft2. <br /> ASSUMPTIONS <br /> 1. Secondary pipes mannings n =0.012,Tertiary pipes mannings n =0.015 <br /> 2. Hydraulic conductivity of DCF=0.036 ft/s <br /> 3. Max head on liner= 2 ft <br /> 4.Tertiary pipes designed for full flow, assuming"arching" of DCF above,with a FOS of 1.5,conservative 0%slope <br /> 5.Secondary pipes designed assuming a pipe collapse configuration ("figure 8") <br /> METHODOLOGY <br /> REFERENCES <br /> 1.AutoCAD Civil 3D 2018 <br /> 2. Cripple Creek&Victor Gold Mining Company Squaw Gulch Valley Leach Facility Design,AMEC Earth and <br /> Environmental, September 1, 2011. <br /> CONCLUSIONS <br /> Filename: <br /> P:\Projects\0106.033 VLF2 Phase 3 Detailed Design\H-CALCULATIONS\Pipe Calcs\[Pipe Sizing and Spacing_CC&V.xlsx]Calc Cover-HVSC Pipes <br />