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produce even moderate flows (>3 gpm) for any significant period of <br />• time. <br />Overall, water quantities within the mine increased as <br />compared to 1990. The number of seep sources and the extent of the <br />sumps mapped are indicative of the relatively higher inflows as <br />compared to 1990. No water was discharged from the mine to the <br />surface during the '90 - '91 reporting period. Cyprus Orchard <br />Valley again has no plans to discharge water from within the mine <br />to the surface during the '91 - '92 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 720,000 tons of coal was produced from the <br />Orchard Valley West Mine from July 1, 1990 through June 30, 1991. <br />Production estimates for the following twelve month period call for <br />approximately 900,000 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 4,500,000 gallons from July,1990 through June, 1991. <br />9 59PM <br />From historical detailed coal sampling at the face and on the <br />surface, an approximate 1% moisture gain from the inplace value to <br />the train loadout point is apparent. Consequently, approximately <br />1,800,000 gallons of water were imported for face coal dust <br />control. Therefore, approximately 2,700,000 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 />Hvdrolooic Impacts <br />A slight increase in mine inflow occurred relevant to <br />undermining Panel A during the last year. Panel A was found to be <br />wetter than Panel H mined during the previous year. The location <br />of Panel A with respect to Steven's Gulch is similar to Panel H, <br />with regard to distance and cover depth. However, Panel A's <br />location with respect to a sandstone channel in the roof likely <br />accounts for the relatively wetter conditions encountered as <br />compared to Panel H. <br />• Inflow amounts for the next year are projected to remain <br />comparable with those already documented. The development of Panel <br />