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Mr. Wallace H. Erickson
<br />Response to Sixth Adequacy
<br />October 11, 2011
<br />Page 23
<br />There are no manmade structures considered to be of significance within 200 feet of
<br />the permit area for the following individuals:
<br />These adjacent landowners have fences or gates which are well in excess of 200 feet of
<br />any mining or milling activities, and are not significant or permanent man-made
<br />structures. In addition, a third copy of a damage compensation agreement for the May
<br />Day Idaho Mine Complex was sent on May 23, 2011 to all individuals who are within
<br />200 feet of the permit boundary.
<br />As to these individuals, Wildcat submits the following engineering evaluation
<br />demonstrating that man made structures owned by these individuals within 200 feet of the
<br />permit boundary shall not be damaged by activities occurring at the mining operation.
<br />Wildcat has previously conducted field surveys of affected lands within 200 feet and has
<br />determined there will be no impacts the adjacent structures. See Exhibit 6.5, at 9 -10.
<br />Structures include fences, domestic wells, and well head protection sheds. Engineering
<br />assessment included simulating potential slope failure impacts to manmade structures,
<br />and the possibility of well production losses due to compaction/siltation from the
<br />adjacent access road. For instance, Wildcat calculated in its Geotechnical Stability
<br />Exhibit, which was certified by Mr. Erich Rauber, P.E., that: "The private owner
<br />property boundary is approximately 80 feet from the New Access Road cut slope and if
<br />the road cut failed (which is highly unlikely) where a final 3:1 slope was created, the
<br />land slide head cut would be approximately 40 to 45 feet from the private landowner's
<br />property boundary. Recent geotechnical assessments described in Attachment 6.5.3 and
<br />Attachment D -1 suggest that the current and final cut slopes are stable." See Exhibit 6.5,
<br />at 10. The access road is offset is at least 25 feet from the adjacent landowners well
<br />head where water is produced from the La Plata River shallow alluvium. The depths of
<br />the wells adjacent to the access road range from 8 to 15 feet deep. The alluvium consists
<br />of large cobbles, sands and silts. The road bed will be constructed such that drainage and
<br />possible siltation will be diverted away from the adjacent wells. The road bed will
<br />consist of cobbles and coarse gravels (highly permeable) which has the capability of
<br />conveying water through the subgrade road base (in the event of flooding) thus allowing
<br />water to recharge to the alluvium and to the adjacent wells. Using case studies similar to
<br />the Wildcat Mining Corporation, the La Plata River hydrogeologic characteristics related
<br />to porosity, permeability, water levels, well yields, or aquifer flow rates were not be
<br />affected by road construction or operation.
<br />DEN 97,629,117v1 10 -11 -11
<br />GREENBERG TRAURIG, LLP ® ATTORNEYS AT LAW is WWW.GTLAW.COM
<br />Jim and Ruth Olson
<br />Kelly Okamura
<br />David N. Kingsley
<br />U.S. Forest Service -San Juan
<br />Citgo Properties LLC (northern parcel)
<br />Liberty Communication
<br />Gerry and Gary Gibbons
<br />Charles and Lorraine Taylor
<br />Ward Lee
<br />Doyle E. Huckabay
<br />Mr. Wallace H. Erickson
<br />Response to Sixth Adequacy
<br />October 11, 2011
<br />Page 23
<br />There are no manmade structures considered to be of significance within 200 feet of
<br />the permit area for the following individuals:
<br />These adjacent landowners have fences or gates which are well in excess of 200 feet of
<br />any mining or milling activities, and are not significant or permanent man-made
<br />structures. In addition, a third copy of a damage compensation agreement for the May
<br />Day Idaho Mine Complex was sent on May 23, 2011 to all individuals who are within
<br />200 feet of the permit boundary.
<br />As to these individuals, Wildcat submits the following engineering evaluation
<br />demonstrating that man made structures owned by these individuals within 200 feet of the
<br />permit boundary shall not be damaged by activities occurring at the mining operation.
<br />Wildcat has previously conducted field surveys of affected lands within 200 feet and has
<br />determined there will be no impacts the adjacent structures. See Exhibit 6.5, at 9 -10.
<br />Structures include fences, domestic wells, and well head protection sheds. Engineering
<br />assessment included simulating potential slope failure impacts to manmade structures,
<br />and the possibility of well production losses due to compaction/siltation from the
<br />adjacent access road. For instance, Wildcat calculated in its Geotechnical Stability
<br />Exhibit, which was certified by Mr. Erich Rauber, P.E., that: "The private owner
<br />property boundary is approximately 80 feet from the New Access Road cut slope and if
<br />the road cut failed (which is highly unlikely) where a final 3:1 slope was created, the
<br />land slide head cut would be approximately 40 to 45 feet from the private landowner's
<br />property boundary. Recent geotechnical assessments described in Attachment 6.5.3 and
<br />Attachment D -1 suggest that the current and final cut slopes are stable." See Exhibit 6.5,
<br />at 10. The access road is offset is at least 25 feet from the adjacent landowners well
<br />head where water is produced from the La Plata River shallow alluvium. The depths of
<br />the wells adjacent to the access road range from 8 to 15 feet deep. The alluvium consists
<br />of large cobbles, sands and silts. The road bed will be constructed such that drainage and
<br />possible siltation will be diverted away from the adjacent wells. The road bed will
<br />consist of cobbles and coarse gravels (highly permeable) which has the capability of
<br />conveying water through the subgrade road base (in the event of flooding) thus allowing
<br />water to recharge to the alluvium and to the adjacent wells. Using case studies similar to
<br />the Wildcat Mining Corporation, the La Plata River hydrogeologic characteristics related
<br />to porosity, permeability, water levels, well yields, or aquifer flow rates were not be
<br />affected by road construction or operation.
<br />DEN 97,629,117v1 10 -11 -11
<br />GREENBERG TRAURIG, LLP ® ATTORNEYS AT LAW is WWW.GTLAW.COM
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