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hme t998 t <br />Eaeriryhliela Caul, lac. 1997A~ut HX6nJnyPyRgoorr <br />INTRODUCTION <br />The 1997 Annual Hydrology Report (AHR) presents summarized hydrologic monitoring data <br />and consumptive water use for the Southfield Mine operation during the reporting year July 1, <br />1996 through December 31, 1997. This report covers an expanded water yeaz of 18 months. <br />The extended water year incorporates the change in the reporting period as approved in <br />Minor Revision No. 34. Similaz to previous reports, discussion of hydrologic data and <br />comparison of these data with previous reporting periods are incorporated within the report. <br />The AHR is prepared and submitted in accordance with Exhibit 25, Hydrologic Monitoring <br />Plan, of the permit application. <br />Energy Fuels Coal, Inc ("EFCI") operates the Southfield Mine located 8 miles south of <br />Florence, Colorado as shown oa Pigure 1. Coal is produced by underground room and pillaz <br />mining methods. All runof--mine coal is processed through the coal preparation plant to <br />remove rock impurities and produce sized products. The mine and associated facilities were <br />in active operating status during the reporting period, although the mine was idle from July 1, <br />1996 through November 14, 1996. <br />Monitoring data and information compiled for the AHR were collected in compliance with the <br />approved monitoring Programs. In addition, data collected by the previous operator, <br />Dorchester Coal Compaq (1979-1985) is included in data summary. Required monitoring <br />data collected and presented in this AHR includes: quantity and quality of mine inflows; <br />quantity and quality of discharges to streams; groundwater quality and levels; and stream flow <br />quantity and quality. <br />