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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 /> 2013 at which point fall rainy weather began negating the need for further supplemental <br /> watering. <br /> Remainder of Phase 1 Mitigation <br /> ' The remaining Phase 1 impacted trees, shrubs and mitigation activities as detailed on Tables 1 <br /> and 2 will be completed following the Phase 2 valley floor clean-up activities. The Phase 2 <br /> ' mitigation includes 0.3 acre of upland area restoration, 0.35 acre of riparian area creation and <br /> restoration, and the planting of 174 riparian trees and 615 willow stakes (see Tables 1 and 2). <br /> The reason for postponing the completion of all Phase I mitigation is that much of the area along <br /> the Creek downstream of the cutoff wall will likely be impacted during Phase 2 valley floor clean- <br /> up activities. Since it is unknown exactly where this impact will occur, it is prudent to delay the <br /> planting of the remaining trees and shrubs until the valley floor and associated Creek restoration <br /> work has been completed. <br /> 2013 Pre-Flood Mitigation Monitoring Success <br /> On August 21, 2013, IRIS collected data on establishing trees and shrubs in the Phase 1 <br /> ' mitigation areas (see Table 3). Of the 500 planted trees, shrubs, and willow stakes, there were <br /> 22 trees (both riparian and upland), 328 shrubs (both riparian and upland), and 150 willow (Salix <br /> ' exigua) stakes planted. In August 2013, IRIS found that 17 of the 22 planted trees had <br /> established (77 percent tree success), 294 of the 328 shrubs had established (90 percent shrub <br /> success), and 128 of the 150 willow stakes had established. In addition, IRIS counted an <br /> additional 10 volunteer willow plants for a total of 92 percent willow stake success (see Table 3). <br /> ' Schwartzwalder Mine Phase 1 -2013 Mitigation Monitoring Report Page 4 <br /> May 31,2014 <br />