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5, i~`~ <br />} <br />SMITN WILl1AM5 CONSULTANTS, INC. <br />CALCULATION TITLE PAGE <br />• <br />CLIENT JOB NO. TASK NO. PAGE 1 ~ OF 5 <br />Cripple Creek 8 Victor Gold Company 1125 A100 <br />PROJECT CALCULATION No. REV. No. <br />Arequa VLF 1 1 <br />SUBJECT/ TITLE <br />HI h Volume Solution Collection Desl n <br />REV. <br />NO. PREPARERI DATE REVIEWER/ DATE OA REVIEWER/ DATE CONFIRMATION <br />REQUIRED M <br />1 Amanda L. Dolezal 119/08 Derek T. Wittwer 1126/08 ~(F' .~ od <br /> <br /> <br />CALCULATION OBJECTIVE <br />Design high volume collection pipe layout, including the size, length, and spacing of tertiary and secondary pipes. <br />CALCULATION METHODOLOGY! LIST of ASSUMPTIONS <br />• Tertiary pipes are made of highway grade PCPE, i) = 0.015 Mannings <br />• Secondary pipes are made of ADS N-12 or equivalent, i) = 0.012 Mannings <br />• Solution application is 0.003 gpm/ft = 6.68 x 10'6 cfs/ftZ <br />• Hydraulic conductivity of DCF = 0.11 cm/sec = 0.0036 ft/sec <br />• Maximum head on liner = 2 feet <br />• Maximum flow rate = 14,400 gpm <br />• Factor of safety on tertiary pipes = 1.5 <br />• Secondary pipe sizes based on figure "8" defonned section <br />REFERENCES <br />CONCLUSIONS <br />• Tertiary pipes will consist of 4"diameter pipes. <br />• Secondary Pipes will consist of 8", 10", 12", 16", and 18" pipes. The size of the secondary pipes depends on the <br />slope of each area. <br /> <br />