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Exhibits and Drawings - Comment 7 - Section 6 of Exhibit 2.05 -E3 includes a Pond D <br />Summary that lists the details of the currently approved Pond D configuration. The <br />primary spillway invert elevation on this table is reported to be 6166.0'. The previously <br />approved SEDCAD demonstration for Pond D (Exhibit 2.05 -E3 Section 10y) also specified <br />a primary spillway elevation of 6166.01. The SEDCAD run provided by Oxbow with the <br />RN -6 adequacy response indicates that the spillway elevation is 6167.5'. The riser height in <br />the currently approved run is 5.0'; the RN6 submittal is 5.2'. Likewise, the previous <br />version indicates a secondary spillway elevation of 6168.1' and the RN6 submittal is based <br />on an elevation of 6169.5'. Please verify the spillway elevations and riser height and revise <br />the RN -6 SEDCAD runs or the Pond D Summary for consistency. <br />Oxbow Response: Please see the attached updated Pond D Summary. <br />Exhibits and Drawings - Comment 8 -- Map series 2.05 -M4 has inconsistent sheet labels. <br />The series contains sheets: 1/4, 2/4, 3/4, 1 /1, 5/5 and 515. Please update the map sheet <br />numbers. Also, update the map number and sheet on page 2.05 -23c, Section P, last <br />paragraph, Map 2.04 -M4 should be 2.05 -M4 (sheet number ?) - Drainage and Sediment <br />Control Plan. <br />Oxbow Response: The Oxbow PAP is a typical, dynamic document where, over time, additional <br />map sheets are added to map series. Map 2.05 -M4 is such a map. When new sheets are added, it <br />is cumbersome and wasteful to replace older sheets simply to correct sheet numbers. We have <br />attached labels containing sheet numbers to be placed on the maps to bring consistency to the <br />map series numbers. <br />Please contact me at 970 - 929 -5806 if you any questions or comments regarding this permit <br />renewal application material. <br />Sincerely, <br />James A. Kiger <br />Environmental Manager <br />Attachments <br />Xc: Michael Ludlow, (OMLLC) <br />Delta County <br />Gunnison County <br />USFS, PRD <br />BLM, UFO <br />Paonia Library <br />Files <br />• Page 3 <br />