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Manb 2003 EnetgY Futk Coallnt. -Southfield Mrne * 2002 Annua! Hydtokgy Report ~ Pagc 7 <br />1.0 INTRODUCTION <br />This 2002 Annual Hydrology Report (AHR) summarizes ground water inflows, use, and discharge, <br />and ground and surface water hydrologic monitoring resul[s fox the Southfield Mine and Loadout <br />areas during the 2002 water yea[, which cortesponds to the calendar yeaz. <br />' Energy Fuels Coal, Inc ("EFCI'? is the owner and operator of the Southfield Mine, located <br />approximately 8 miles south of Florence, Colorado, and the associated Loadout facility, located <br />approximately 1.5 miles northwest of Florence, as shown on Figure 1, Mine Monitoring Lotationr and <br />Figure $ Loadout Monitoring Lotationr. EFCI ceased active mining and processing activities in lace <br />December 2000, remaining stockpiled coal was sold and shipped during January and February 2001, <br />and final reclamation activities for the Mine Area were initiated in August 2001. Underground mine <br />areas were accessible for ongoing mine inflow monitoring through September 2001. Monitoring of <br />underground sites was discontinued with permanent sealing of the mine portals in December 2001. <br />Energy Fuels Coal, Inc. (EFCI) discontinued use of the separate Loadout Area in ]996 and the <br />' Loadout Area was reclaimed in 1997. <br />Water monitoring activities during the 2002 water year were generally based on the approved <br />monitoring plan, presented in Exhibit 25, Hydrologic Monitoring Plan, of the CDMG Mining and <br />Reclamation Plan document. Hydrologic motti[oring activities were conducted or supervised by Al <br />Weaver. Hydrologic mottoring samples were analyzed by ACZ Laboratories, Inc. of Steamboat <br />' Springs, Colorado. Field and laboratory data for the 2002 water year aze provided in Appendices A <br />and B. Surface water monitoring sites, ground water monitoring wells, and mine inflow monitoring <br />sites axe shown on Figures 1 and 2. <br />In order to provide a reference for identification and evaluation of any changes in ground water levels <br />or inflows, surface water flows, or surface and ground water quality, data collected by the previous <br />operator, Dorchester Coal Company (1979-1985) and more recent EFCI monitoring data (1986 - <br />2002) is included in the data summaries. Required monitoring data collected and summarized in this <br />report includes the following: <br />' . Quantity and quality of mine inflows <br />• Water use quantities <br />• Quantity and quality of mine water and surface runoff discharges to azea streams <br />• Groundwater quality and levels <br />• Stream flow quantity and quality <br />MWH * 1475 Prue Grovc Road, Suite 709 * Steamboat Spriugg CO 80487 * (970) 879-6260 <br />tl'6P/E.ng F.N./XUSA.W Hr/ pp <br />f/I)/Old <br />