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significant periods of time. <br />• Overall, water quantities within the mine decreased as <br />compared to 1991. The number of seep sources and the extent of the <br />sumps mapped are indicative of the relatively lower inflows as <br />compared to 1991. No water was discharged from the mine to the <br />surface during the '91 - '92 reporting period. Cyprus Orchard <br />Valley again has no plans to discharge water from within the mine <br />to the surface during the '92 - '93 reporting period. No water <br />has been discharged from the mine to date. The northern end of the <br />South III Submain remains available to hold excess water which may <br />be encountered although this is not anticipated based upon the <br />patterns of inflow established thus far. <br />Water Importation and Balance <br />Approximately 1,015,000 tons of coal was produced from the <br />Orchard Valley West Mine from July 1, 1991 through June 30, 1992. <br />Production estimates for the following twelve month period call for <br />approximately 1,200,000 tons of coal to be mined. <br />Mine water importation is estimated from recorded flows and <br />related tonnages at the Orchard Valley Mine from September of 1985 <br />through April of 1986. Calculations from recorded measurements <br />indicated approximately 2.5% by weight of imported water (in <br />relation to the total raw coal tonnage) is used for face and <br />• roadway dust control. This translates to an import water usage of <br />approximately 6,340,000 gallons from July,1990 through June, 1991. <br />From historical detailed coal sampling at the face and on the <br />surface, an approximate to moisture gain from the inplace value to <br />the train loadout point is apparent. Consequently, approximately <br />2,536,000 gallons of water were imported for face coal dust <br />control. Therefore, approximately 3,804,000 gallons of water were <br />used for roadway dust control with a small percentage of this <br />evaporating as humidity into the air and being expelled from the <br />mine. <br />Hydrologic Impacts <br />A slight decrease in overall natural mine inflow occurred <br />during the 1991 - 1992 mining year addressed by this report. Panel <br />B was found to be slightly drier than those portions of Panel A <br />mined during the previous year. Advance development of the II West <br />Submains through crosscut 27 occurred under essentially dry <br />conditions with only damp areas encountered. <br />Inflow amounts for the next year are projected to remain <br />comparable with those already documented. The development of Panel <br />C may entail more significant inflows given the proximity to the <br />• Stevens Gulch drainage and the low cover depths over this area. <br />Conditions in the II West Submains are anticipated to remain drier <br />