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IRIS <br />MITIGATION AND DESIGN, INC. <br />Environmental Consulting <br />Comment 7 (received separately at a later date): Page 16 and Table 11 you cite 0.06 <br />temporary upland impacts to be restored in place in Phase 1. Where is the other 0.69? <br />Response 7: The proposed Phase 1 permanent and temporary impacts have changed slightly as <br />have the mitigation ratios and proposed mitigation areas. Please see Table 1 of this submittal for <br />an updated description of these calculations. <br />Thank you for your assistance with this proposed Phase 1 project work at the Schwartzwalder <br />Mine. Please call or e -mail to discuss any of these responses further or if I can further clarify <br />any other issues. <br />Sincerely, <br />IRIS MITIGATION AND DESIGN, INC. <br />BCairLeisure <br />Blair Leisure, M.Sc. <br />Principal /Senior Scientist <br />cc: Jon Jones, P.E., Wright Water Engineers, Inc. <br />Andrew Earles P.E., Wright Water Engineers, Inc. <br />Wayne Lorenz P.E., Wright Water Engineers, Inc. <br />Amory Quinn, Cotter Corporation <br />John Hamrick, Cotter Corporation <br />Randy Whicker, Cotter Corporation <br />Encl. <br />IRIS MITIGATION AND DESIGN, INC. <br />3450 W. 32nd Avenue, 2nd Floor <br />Denver, Colorado 80211 <br />Phone: 720 - 272 -1985 <br />bleisure@irismitigation.com <br />Schwartzwalder Mine Phase 1 Page 13 October 2011 <br />Response to USFWS Comments <br />