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1 <br />~. We have discussed modifications to the ore stockpiling plan, which now will not include a geo-membrane or <br />earthen liner under the ore. You have delineated the ore storage area on the new maps, which will consist of an <br />area below the dump whose drainage will report to settling pond SP-C. Is any berming of the perimeter of the ore <br />storage area to be employed, to divert upland water or help contain ore pad water? <br />6. You stated that sampling of water from station number 5 will be performed weekly, I assume for the purpose of <br />early detection of contamination. Are these weekly samples to be analyzed according to the same paranteters <br />presented th the October l0, 2001, sample? <br />7. You state that the ore storage area will be prepared by removing all topsoil, down to a "base rock" surface. Will <br />the ore require drying after it is extracted from the mine? Will it be sacked or simply piled on the storage area? It <br />should definitely be protected from precipitation by Carping while stockpiled. Placement of the ore directly on this <br />base rock surface, especially if it is kept dry, will act to reduce the opportunity for water quality degradation. <br />8. Please review the language involving stockpiled ore (regarded as a potential acid-producing material, if left to <br />weather for prolonged periods) in Rules 1.1(1) and l.l(2). Besides the physical issues of ore stockpile areas, the <br />rules include a 180-day ore storage provision which gives the operator a little room if the ores are removed within <br />that period. <br />9. The four settling ponds aze linked by surface ditches. Most of the ditches will be short and of gentle gradient, <br />except the one between ponds SP-D and SP-C, which is fairly steep. This ditch should be riprapped or otherwise <br />protected from scouring. You included a statement about logs in the ponds to prevent erosion, and it may refer to <br />this type of practice, but it is not clear. Please decribe what control practices will be used on this section. <br />10. The settling ponds are not planned to be lined, so they will temporarily detain the water and hold sediment, but <br />the water should be able to percolate into the ground. These ponds are all on the permitted area. Your new map <br />showed a short ditch segment from the lowest pond (SP-A) directly to Red Cloud Creek. Such a planned discharge <br />conveyance route or constructed outlet will probably require a NPDES permit from the Colorado Health <br />Department. If it is at all possible, I would advise against planning a surface discharge from the ponds to the creek <br />or any other location outside the permitted area boundary, and in that way avoid the need for the NPDES dischazge <br />permit. The ponds' capacities should be calculated so that they are sufficient without the need for surface <br />discharges, which might mean a bit more earthwork to build up the downstream sidewalls or deeper excavation. <br />Please comment on this. <br />Exhibit D -Reclamation Plan (Rule 6 3 4) <br />11. The reclamation of the area will include topsoil replacement and seeding. Will all affected areas be similarly <br />treated, since you have indicated this on the reclamation map? How are the roadways in the permit area be <br />reclaimed? Will there be any difference between road reclamation of roads in the claims and roads on BLM land? <br />Other Items <br />12. The water sample is being reviewed by our staff in Denver. I was told verbally that the analysis showed very <br />clean water. This quality of water does not allow much margin for degradation. Admittedly, this season of the year <br />typically shows the best water, and since it varies seasonally, eve require five consecutive quarters of sampling. I <br />understand that the site will be inaccessible during winter and sampling impossible. Spring usually shows the worst <br />water, and that is why you must endeavor to sample as early as possible in the spring, and follow that quarterly <br />during summer and fall, at all five sampling stations if you can. <br />13. Demonstrating your right-of--entry for the 2.09 acres (portal and egipment area) of BLM land will require the <br />submittal of a written agreement of some sort. Mr. Tollefson is discussing this with other staff, so you should be <br />able to get this in-hand soon. However, we will require a copy of it before you can enter to mine. <br />