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EFCI Southfield Mine - 2009 Annual Hydrology Report March 10, 2010 <br />1.0 INTRODUCTION <br />This 2009 Annual Hydrology Report (AHR) summarizes water use, discharges to streams, and <br />ground and surface water hydrologic monitoring results for the reclaimed Southfield Mine and <br />Loadout areas during the 2009 water year, which corresponds to the calendar year. Similar to <br />previous reports, discussion of hydrologic data and comparison of these data with previous <br />reporting periods are incorporated within the report. Thirty years of monitoring data are included <br />in the database used to produce this report. The AHR was prepared and is submitted in <br />accordance with Exhibit 25, Hydrologic Monitoring Plan, of approved mining and reclamation <br />permit No. C-81-014. <br />Energy Fuels Coal, Inc ("EFCI") is the operator and permittee 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 Figures I and 2. EFCI ceased <br />mining, coal processing, and coal sales activities during December 2000 through early 2001. <br />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 <br />of underground sites was discontinued upon permanent sealing of all mine portals in December <br />2001. EFCI discontinued use of the ancillary Loadout Area in 1996, and reclaimed the site in <br />1997. <br />Water monitoring activities during the 2009 water year were conducted in compliance with the <br />aforementioned monitoring plan. Hydrologic monitoring activities were conducted by George <br />Patterson, Mine Manager; and all water samples were analyzed by ACZ Laboratories, Inc. of <br />Steamboat Springs, Colorado. Surface water monitoring sites and groundwater monitoring wells <br />for the mine site are shown on Figure 1, Mine Monitoring Locations. Figure 2, Loadout <br />Monitoring Stations, indicates surface water monitoring sites adjacent to the loadout site. <br />In order to provide a reference for identification and evaluation of any changes in groundwater <br />levels or inflows, surface water flows, or surface and groundwater quality, data collected by the <br />previous (and initial) operator, Dorchester Coal Company (1979-1985) and subsequent EFCI <br />monitoring data (1985-2009) is included in the data summaries. Required monitoring data <br />collected and summarized in this report includes the following: <br />• Water use quantities <br />• Quantity and quality of surface runoff discharges (from ponds) to local streams <br />• Groundwater quality and well levels <br />• Stream flow quantity and quality <br />2009 AHR.doc WP Page 1