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Hydrogeological Evaluation of Sunday Mines Group <br />Geologic and Hydrologic Conditions <br />• <br />• <br />Exhibit 2-5 Wells located in General Vicini o Sunday Mines Group. <br />Well Location Permitted Distance from Comments <br /> Uses Sunday Group <br /> Mines <br />SE 1/4 SW 1/4 Sec. 25, Stock 2.4 miles Well is potentially downgradient <br />T44N, R18W, from mine workings. However, <br />NMPM' the well is located in the Dakota <br /> aquifer, which overlies Salt <br /> Wash Aquifer and is isolated <br /> from Sunday Group Mine <br /> workings by Brushy Basin <br /> Confining Unit. <br />NE 1/4 SW 1/4 Sec. 25, Industrial, Approximately Located southwest of mine area, <br />T44N, R19W, Domestic 5 miles gradient to mine area unknown. <br />NMPM <br />NE 1/4 SE 1/4 Sec. 31, Domestic, Approximately Located southwest of mine area, <br />T44N, R18W, Stock 4 miles gradient to mine area unknown. <br />NMPM <br />NW 1/4 NW 1/4 Sec. Domestic Approximately Located northeast of mine area, <br />33, T45N, R18W, 4 miles upgradient from mine areas. <br />NMPM <br />Notes: y New Mexico Principal Meridian <br />Potential future uses of groundwater in the area of the Sunday Group Mines are <br />limited by the land ownership and the BLM Management Plan for the area. The <br />affected areas of the Sunday Mines Group are included within Management Area 3 <br />(MA 3): Natural Landscape with Limited Management. Management activities for areas <br />with this designation are defined as follows (BLM 2008): <br />Management activities are allozved, but limited, on MA 3s. They occur mostly <br />for restoration purposes needed because of natural disturbance events or past <br />management actions. Management activities may include restoration of <br />ecological conditions or habitat components; prescribed burns; zvildland fire <br />use; salvage logging following fire, insect epidemics, and/or zvind events; <br />hazardous fuels reduction; and invasive species reduction. Temporary road <br />construction and motorized equipment may be used in order to achieve desired <br />conditions; hozvever, most roads zvould be closed upon project completion. <br />Most MA 3s emphasize non-motorized recreation opportunities, but <br />motorized travel occurs in some areas on existing roads and some trails. <br />Livestock grazing occurs on many of these lands. <br />As described in the BLM Management Plan designation, BLM intends to manage this <br />area with very limited disturbance. Future development that would be expected is <br />continued mining in the area of the Sunday Group Mines, which is authorized by the <br />General Mining Law of 1872. In addition, oil and gas exploration and/or additional <br />c 2-27 <br />7:\64988-Denison Mines\Task Order 3 - DMO Sampling and Analysis Plan\Task 3.14 - HydrogeolDgy RepoAVinal sunday hydro reporNextTINAL Sunday Hydrogeology Report.doc