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RIDER TO MINING PERMIT <br />Permit Date: February 5, 2013 <br />Permit No.: M- 2012 -032 <br />The following additional stipulations and conditions form an integral part of the foregoing permit: <br />Stipulation No. Description <br />1 Condition No. 1 <br />The Operator must continue the approved water quality monitoring program for the life of the permit <br />including the underground water sampling and surface water sampling. Analysis shall include the set of <br />approved parameters or as modified under a revision. Results of analyses must be forwarded to the Division <br />within 15 days of receipt by the operator. <br />2 Condition No. 2 <br />The Operator may not commence production -level operation of the mill until a limited test run of the mill <br />circuit has generated sufficient tailings materials to be analyzed and certified by the Division. Tailings <br />analysis of 250 tons of ore, or a greater amount as approved by the Division, must indicate that tailings will <br />not adversely affect the hydrologic balance if disposed of in the manner described in the plan. No <br />production level milling operations can commence until written acceptance of the tailings analysis and a <br />notice to proceed are issued by the Division. Tailings analysis will be performed thereafter on a quarterly <br />basis during each quarter that the mill is operational. <br />3 Condition No. 3 <br />The Operator must conduct periodical geochemical analysis of waste and ore rock. Rock analysis will be <br />performed on a quarterly basis during each quarter that waste rock is generated and disposed of in a waste <br />rock disposal area. Ore analysis will be performed quarterly or when new areas not previously tested are <br />initially opened for production. All test results will be forwarded to the Division within 15 days of receipt <br />by the operator. <br />4 Condition No. 4 <br />The Operator shall not install the proposed perforated line to be buried in the existing waste rock dump in <br />lieu of discharging the groundwater into the existing mine pond until all waste rock analysis has been <br />performed and accepted by the Division. Geochemical analysis must demonstrate that the waste rock will <br />not release constituents of concern above acceptable groundwater limits. The Division must approve the <br />location of waste rock to be analyzed, sampling method and type of analysis, construction details and <br />schedule of pipeline installation, all under a revision to the permit. <br />MINED LAND RECLAMATION BOARD <br />COLORADO DEPARTMENT OF NATURAL RESOURCES <br />7 ' 7 2A....e.„0-6,_ <br />LORETTA E. PINEDA <br />Division Director <br />