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• Introduction <br />According to Stipulation No. 29, Permit No. C-81-038, the operator submits the following Affiual Mine <br />Inflow Report for the period of July 1,1997 through June 30, 1998. <br />Mining Locations and Projections <br />Mining operations at Bowie No. 1 Mine have temporarily ceased due to market conditions and coal quality <br />issues. It is unclear at this time where mining operations would resume in the event that this coal reserve <br />becomes economically viable. <br />i~Tiue Inflow <br />The Mine Inflow Study at the Bowie No. 1 Mine was conducted during November, 1998. Seeps continued <br />to exhibit the same characteristic patterns expected whin mine workings intercepted perched aquifers. <br />Seeps enceuntered during the past year failed to produce even moderate flow (> l g.p.m.) for any signiScant <br />periods of time. <br />No water was discharged from the mine to the surface during the 1997-1998 reporting period The <br />operator has no plans to discharge water from within the mine to the surface during the 1998-1999 <br />reporting period No water has bear discharged from the mine to date. The northern end of the III South <br />Submains re~+~ainc available to hold excess water if encountered although this is not antiapated based upon <br />the patterns of inflow established thus faz. <br />Water Importation and Balance <br />Approximately 332,047 loos of coal was produced from the Bowie No. 1 Mine from July 1, 1997 through <br />• June 30, 1998. Production estimates for the following twelve month period aze greatly reduced due to coal <br />quality and market issues. Mme water importation is estimated from recorded flows and related tonnages <br />at the mine from September, 1985 through April 1986. Calculations from recorded measurements <br />indicated approximately 2.5% by weight of imported water (in relationship to the total raw coal tonnage) is <br />used for face and roadway dust control. This translates to an import water usage of approximately 1.9 <br />million gallons from July, 1997 through June, 1998. <br />From historical detailed coal sampling at the face and on the surface, an approximate 1% moisture gain <br />from the in-place value to the train load-out point is apparent. Consequently, approximately 0.8 million <br />gallons of water were imported for face coal dust control. Therefore, approximately 1. l million gallons of <br />water were used for roadway dust control with a small perc®tage of this evaporating as humidity into the <br />air and being expelled from the mine. <br />Hvdroloinc Impacts <br />Tbere was virtually no water inflow into the mine. Therefore, the hydrologic impact caused by the mining <br />operation is either non-existent or not measurable. <br />Conclusions <br />Mine inflow into the Bowie No. 1 Mine cootinues to be low. The present estimated inflow rate rPmainc at <br />less than 1 million gallows per year. The importation of water has continued to far excced the occurrence of <br />natural mine inflows. No mine disdrarge and minimal importation of water is antiapated during the 1998- <br />1999 reporting period. Therefore, the quality and quantity of surface water adjac~t to the mine will not be <br />affected. The operator will continue to submit the Annual Subsidence and Hydrology Report which will <br />• m~..,marize all subsidence and hydrology data. This study is part of that annual report. <br />-1- <br />