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1 <br />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 />SCHWARTZWALDER MINE 2014 PHASE 1 <br />SECOND ANNUAL MITIGATION MONITORING REPORT <br />1 <br />This report details the 2014 Cotter Corporation (N.S.L.) ( "Cotter ") Schwartzwalder Mine — <br />Phase 1 - Second Annual Mitigation Monitoring of mitigation work completed in 2012 and 2013. <br />This report is part of the U.S. Army Corps of Engineers ( "USACE ") 404 Permit mitigation <br />requirements (Permit # NOW- 2011- 1353 -DEN dated November 25, 2011) and has been <br />prepared for the USACE and the U.S. Fish and Wildlife Service ( "USFWS "). IRIS Mitigation and <br />Design, Inc. ( "IRIS ") is assisting Cotter on this project work at the Schwartzwalder Mine located <br />near Golden, Colorado. <br />The September 2013 devastating flood event (the "Flood ") had a significant impact on Ralston <br />Creek (the "Creek ") and adjacent riparian vegetation throughout the area. As described more <br />fully in the IRIS "2013 Phase 1 Mitigation Monitoring Report", the Flood destroyed approximately <br />50 percent of existing riparian vegetation along the Creek and an estimated 47 percent of Phase <br />1 planted vegetation that was establishing in the Phase 1 mitigation areas. This greater than <br />500 -year storm event inflicted heavy damage to the Phase 1 mitigation areas which are now <br />recovering as evidenced in the field and as detailed in this report. <br />I Schwartzwalder Mine Phase 1 — 2014 Second Annual Mitigation Monitoring Report Page 1 <br />March 2015 <br />