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<br /> <br />Additional information requested over the telephone by Larry <br />Routten, is addressed below. <br />46. West Pit and Section 16 Fills. Riprap Channel Design <br />Riprap channel design calculations are included, along with a ` <br />revised Table of Contents, for Exhibit 19. Please insert and I~'~ , <br />replace these pages. j.;'" " <br />47. Exces.a Spoil Fill Construction and Inspection Plans ~ <br />Per the Division's request, the excess spoil fill construction ,.---~-~~ <br />and inspection plans have been modified to address monitoring ~,.,~.-' <br />for voids. The attached revised pages may be placed into <br />Exhibit 19 replacing the current pages. <br />48. Prospect Pond NPDES Permit <br />Colowyo applied for and received a modification to our current <br />NPDES permit to provide for the inclusion of the Prospect <br />Pond. This minor revision has just recently been approved by <br />the Division on April 6, 1992. <br />r. <br />To simplify and avoid confusion, a revised Item 8, Design of ~~('n~R~`, <br />Surface Runoff Control Structures, Permit Revision, 1991, is ~_~ .~ <br />enclosed in its entirety. Please replace the old Item 8 (found in ~~"L'~_.,i <br />Exhibit 7, Hydrology Information) with the revised version. ~~c~~~' <br />l:~- <br />If you have any questions regarding this material, please <br />contact myself or Jim Kiger at your convenience. <br />Sincerely, <br />U~ih/ U//ITC~~ <br />Juan Garcia <br />Hydrologist/Environmental <br />Engineer <br />JG/gf <br />attachments <br />cc: R. G. Atkinson <br />J. A. Kiger <br />BLM-CDO <br />BLM-LSRA <br />OSMRE-AFO <br />OSMRE-WTC <br />Moffat County Clerk <br />Central Files <br />