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Reclamation Feasibility Report - Virginia Canyon <br />istoric Structures <br />sere are no historic structures or artifacts at this site. The timbered adit and door are intact. <br />Eater Quality Impacts <br />ie waste rock pile at this site has been severely eroded by the stream. Erosion of the waste pile <br />aves a vertical escarpment, which results in slumping into the stream. This cycle has left only a <br />inor portion of the waste rock in-place. The waste pile also partially blocks an ephemeral tributary. <br />:aching of the waste rock by surface and groundwater in the ephemeral drainage is likely. Results <br />)m the 2:1 leachate analysis are given below: <br />Site #21 <br />)H <br />U. Total Acidity <br />mil As <br />PIDD Cd <br />p Cu <br />b Fe <br />b Mn <br />b Pb <br />b Zn <br />b <br />2.72 560 BDL 83J 1400 19000 BDL 28000 16000 <br />aclamation Measures <br />ie recommended reclamation measure for this site is to remove the waste rock. As an alternative, <br />e waste rock can be armored with riprap, wooden or concrete cribbing, or other commercial <br />)utment product. If the pile is left in place, the ephemeral drainage should be conveyed around the <br />le. The diversion should be deep enough to prevent groundwater flow through the waste rock. <br />asino Tunnel (Site #29 <br />51 <br />)C? <br />1i is located in Seaton Gulch southeast of and across the stream from the Foxhall Tunnel <br />'igures 3 and 26). The mine waste pile was not sampled. Site #29 is located. at LAT. N390 45' <br />0", LONG. W1050 31'00.0". The estimated volume of mine waste is 13,000 cubic yards.