Laserfiche WebLink
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 /> trees and shrubs along the creek within the Site. The Creek flowed at least halfway through the <br /> Site for several days and replenished the trees and shrubs in the upper reaches of the creek. <br /> After the Flood, IRIS visited the site on October 3, 2013, and collected data at each of the ten <br /> plots (see Tables 5 and 6). Four of the ten plots had no vegetation left at all (see Appendix A— <br /> Photo 19). Extreme erosion and depositional activity had scoured out the area and deposited <br /> ' rock and cobble in place of where vegetation had been. Four of the plots had 5 percent to 50 <br /> percent vegetation loss (see Table 6) and only two plots had zero percent vegetation loss. The <br /> ' average vegetation loss due to the Flood along the Creek, according to the plot data, totals 52 <br /> percent loss (see Table 6). This corresponds to the loss of planted trees, shrubs and willow <br /> ' stakes along the Creek in mitigation areas (47 percent loss), and to the loss of seeded areas in <br /> the mitigation areas (85 percent loss). <br /> ' Weed Control <br /> Weed control was completed by Weed Wranglers, Inc. at all Phase 1 mitigation areas and along <br /> the installed 18-inch pipeline corridor during the growing seasons of 2012 and 2013. Noxious <br /> and nuisance weeds were sprayed with an appropriate herbicide by backpack to focus the <br /> treatments where needed. Weed control will continue into 2014 as the disturbed and seeded <br /> areas further establish. <br /> ' Schwartmalder Mine Phase 1 -2013 Mitigation Monitoring Report Page 10 <br /> May 31,2014 <br />