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Brock Bowles <br />(i <br />J. E. Stover, P.E. <br />Consulting Engineer <br />Cc: BLM <br />USDA -FS <br />OSM <br />March 5, 2013 <br />3. DRMS - Map D -2 -5 shows the area of the developed water resource which includes <br />the 4 treatment ponds, and the primary and emergency spillways. The map does not <br />show the location of NPDES outfall 001 A. Please include the NPDES outfall 001A <br />on all relative maps. Also, please draw and label the spillway from Pond P9 to the <br />NPDES outfall 001 A as it is not clear on map D -2 -5. <br />NTC - The requested changes were made to drawing D -2 -5. <br />4. DRMS - Drawing D -3 -2 needs to be updated with the current permit boundary. <br />NTC - Permit boundary and location of outfall 001A were added to drawing D -3 -2. <br />5. DRMS - The NTC permit has had many revisions and bond releases during its long <br />history. Due to the numerous revisions and bond releases, many maps exist in the <br />permit that are no longer relevant to the current mine plan. These extra maps are <br />valuable assets to the permit by contributing to the historical knowledge of the mine; <br />however, it is not always obvious which maps are relevant to the current permit. <br />Please provide a list of maps that are still relevant to the current permit. <br />NTC - The table of contents for Volumes IV and V were revised to indicate which <br />maps are relevant to the current permit. <br />6. DRMS - The Division will review the current reclamation cost estimate for the mine <br />site. It is not anticipated the estimate will exceed the currently held bond of $10,000. <br />NTC - No response required. <br />7. NTC - Updated pages 4i through 4ix are enclosed. The permit boundary on drawing <br />D -3 -21 was updated. <br />Enclosed are pages 4i through 4ix, list of drawings for Volume IV and V and drawings D -2- <br />5, D -3 -2 and D -3 -21. <br />Sincerely, <br />