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' TABLE 4.6-26 -Storage Needs from Pumping <br />Inflow to Pit from Wodge Coal <br />D'Appolonia Study -November, 1977 <br />"Hydrogeologic Relationship and Mine Inflow Assessment" <br />From First Box Cut I/I Inflows to Vary <br />65 to 125 gpm (70% confidence) <br />If a 50 foot fracture zone is encountered during mining, inflow could vary from <br />265 to 365 gpm. (50% confidence) <br />Therefore, design pond to handle 365 gpm in addition to a 10 year - 24 hour <br />precipitation event. <br />Acre-Ft/Day -((365 gpm X 60 min/hr X 24 hr/day) = 7.48 gal/ft3)- 43.560 ft/ac/ft <br />• Acre - Ft/Day = 1.6131 Acre - Ft/Day <br />• <br />Revised 7-8 f 4.6-83 <br />