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Ms. Janet Binns <br />February 26, 1992 <br />Page 2 <br />WW-22 thru 27, Vol. 7 <br />Exhibit 12C, Vol. 5 <br />Exhibit 21, Vol. 5 <br />Exhibit 22, Vol. 5 <br />Exhibit 28, Vol. 5 <br />Added to Appendix WW as channel design and <br />pond sizing calculations <br />Revised to show new final contours and <br />reclamation phase drainage <br />Revised to show reclamation phase channel <br />cross sections <br />Revised to indicate enlargement of Pond 7 <br />Revised to show new final contours cross sections <br />As you know we are under the gun to get this reclamation work done, therefore <br />your rapid review of this revision would be appreciated. Let me know if you <br />have any questions. <br />Sincerely, <br />arry eschke <br />Engi er <br />LMR:th <br />Enclosures <br />cc: Bob Hagan, OSM <br />John Singlaub, BLM <br />Bruce Conrad, BLM <br />Rick Holbrook, OSM <br />W.C. Jennings, Powder River Coal <br />