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LA_R-a} S24ER r1 1lhF5 <br /> • Modify headframe to house ventilation fan <br /> ■ Surface development <br /> • Complete construction of reagent and compressor room <br /> • Construct tailings thickener building and modify roof structures for <br /> snow load. <br /> • Construct second pole barn for warehousing <br /> ■ Mill construction and commissioning <br /> o Environmental <br /> ■ Install downgradient monitoring wells <br /> ■ Update Geotech and tailings and waste rock management plan <br /> ■ Complete requirements in TR 14 and 15 <br /> ■ Maintain compliance with Environmental Protection Plan <br /> • Measures taken to meet Rule 3.1 (Performance Standards) <br /> o Ongoing permit compliance <br /> ■ Implement and maintain EPP, including removing mill reagents from the <br /> site and spreading and compacting tailings. <br /> ■ Maintain compliance with Colorado Discharge Permit System (CDPS) <br /> Permit No. CO-0000003. <br /> ■ Maintain compliance with stormwater permit No. COR-040289 <br /> o Maintain compliance with monthly, quarterly and annual inspections with regards <br /> to SPCC, Universal Waste, Hazardous Waste, stormwater, etc. <br /> o Ongoing environmental sampling <br /> ■ Quarterly groundwater sampling <br /> • Surface water sampling <br /> ■ Outfall 002A sampling <br /> ■ Underground mine water sampling <br /> o Ongoing Reporting <br /> ■ Annual production and reclamation reports <br /> ■ Quarterly milling reports <br /> ■ Quarterly hydrology reports <br /> ■ Monthly and quarterly discharge monitoring reports to WQCD <br /> o Maintain 5-stage Passive Mine Water Treatment System. OSMI will continue to <br /> maintain the passive mine water treatment system to achieve discharge permit <br /> limits. <br /> o Staffing—OSMI intends to maintain up to 4 people at the mine site to maintain <br /> the site and to provide site security. OSMI also will maintain environmental staff <br /> and/or third-party consultants to carry out the various environmental sampling <br /> programs and inspections. Lastly, OSMI plans to maintain technical and <br /> administrative support staff during TC. <br /> • Financial Warranty. OSMI is currently working with DRMS on completion of <br /> Amendment 02, which included an updated reclamation bond calculation. The current <br /> bond amount is $517,219 as of approval of TR 16, which is adequate to cover the current <br /> reclamation liability. Updated Exhibit L submitted with Amendment 02 /Preliminary <br /> 21 �' , , <br />