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20.) Please submit a noxious weed control and monitoring plan for the site. Please include the following information: <br />a) A list of potential species of invasive weeds that may occur on the site (Russian Olive, Tamarisk, Canada Thistle, <br />Leafy Spurge ...etc.) <br />b) A description of the various control measures that will be employed for the weed species such as mechanical, <br />chemical, biological control or a combination of the three methods. <br />c) Submit a monitoring plan that describes how often the Operator will monitor the site for noxious weeds <br />(monthly, bi-monthly etc.) and what action will occur if noxious weed are observed. <br />d) A post treatment monitoring plan to determine control effectiveness. <br />e) A commitment that the weed control plan will be implemented for the life of the permit. <br />21.) Please explain how the access or haul road will be reclaimed. <br />22.) The seeding rate proposed in the reclamation plan narrative of 20 pounds per acre if broadcast seeded and 10 <br />pounds per acre if drill seeded does not coincide with the seeding rate recommended by the NRCS. Please explain this <br />discrepancy. The Division recommends following the NRCS recommendation and committing to doubling the seeding <br />rate if the mixture will be broadcast seeded. <br />6.4.6 EXHIBIT F - Reclamation Plan Map <br />23.) There is a portion of the pit slopes in the south central portion of the proposed pit depicting 2:1 slopes. The <br />reclamation plan indicates the pit slopes will be graded to a 3:1 ratio. Please correct the reclamation plan map so it <br />depicts a 3:1 slope in this area. A copy of the reclamation plan map is enclosed with this letter with the area in question <br />highlighted for your reference. <br />24.) According to the application, the post mining land use will be rangeland. On the map please indicate this post <br />mining land use. <br />6.4.7 EXHIBIT G - Water Information <br />25.) It appears storm water will be impounded at the sediment control berm. Please commit to obtaining a temporary <br />substitute water supply plan or appropriate permit from the Colorado Division of Water Resources to augment the <br />evaporative loss generated by the impounded storm water. <br />26.) What will be the source of the water used for dust control and processing? <br />6.4.12 EXHIBIT L - Reclamation Costs <br />27.) The mining plan proposes a phased mining operation, and the Division recommends a p-ha`sed bonding approach <br />where the financial warranty can be updated once mining enters the next phase. For example, the Division could hold a <br />bond for the first phase of the operation for highwall reduction and grading, overburden and topsoil application, <br />revegetation, and road/processing area reclamation... etc. <br />28.) What is the basis of the $600 estimated for grading? The mine face will need to be blasted to create the material <br />necessary to create the final 3:1 slope? Please provide a cost for blasting the necessary material and indicate how much <br />material will be needed at the site to grade the mine face? What will be the maximum length and slope of the mine face <br />to be reclaimed at any one time? <br />29.) If overburden will be spread over the reclaimed area, please provide an updated cost estimate including this task. <br />41 Page