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IRIS MITIGATION AND DESIGN,INC. <br /> IRIS 2022 Arapahoe Street <br /> MITIGATION AND DESIGN,INC. Golden,Colorado 80401 <br /> Environmental Consulting Phone: 720-272-1985 <br /> bleisure@irismitigation.com <br /> SUMMARY <br /> The Flood destroyed 47 percent of 2013 Phase 1 establishing planted trees, shrubs, and willow <br /> stakes in mitigation areas along the Creek. The Flood also destroyed approximately 85 percent <br /> of the 2012 seeded and establishing grasses/wildflowers in mitigation areas. According to the <br /> iten 3 meter square plots, there was approximately 52 percent loss of vegetation along the <br /> Creek due to the damaging Flood. <br /> In summary, 43 percent of planted trees, shrubs, and willow stakes remain of the trees and <br /> shrubs that were originally planted in the mitigation areas. If the willow stakes are removed <br /> ' from the calculations then 61 percent of establishing trees and shrubs remain post-flood. <br /> Mitigation monitoring of planted trees and shrubs in August 2013 showed that approximately 90 <br /> ' percent of trees and shrubs had been establishing. Therefore, of the establishing planted trees <br /> and shrubs just prior to the September 2013 flooding event, 47 percent were destroyed due to <br /> the damaging forces of the Flood and 43 percent are still found at the site and are currently <br /> ' establishing. <br /> ' All seeded mitigation areas were establishing in August 2013. The Flood created a loss of <br /> approximately 85 percent of seeded vegetation in the mitigation areas that were establishing <br /> prior to the event. <br /> ' The Flood along the Creek was a natural disaster that resulted in vegetation loss of 50 percent <br /> and greater. On behalf of Cotter, we request that the remaining 61 percent of planted trees and <br /> ' shrubs in the mitigation areas (7 trees and 206 shrubs) be accepted as having met Phase 1 <br /> Schwartmalder Mine Phase 1 -2013 Mitigation Monitoring Report Page 11 <br /> May 31,2014 <br />