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~~ <br />T e r r a M a t r i x <br />May 16, 1996 <br />Office of Surface Mining <br />Western Regional Coordinating Center <br />1999 Broadway Blvd., Suite 3320 <br />Denver, CO 80202-5733 <br />RE: Hayden Gulch Mine {Permit No. C-80-003) <br />Technical Revision No. 62, Revised Shrub Density Standazd <br />Dear Sirs/Madams <br />Accompanying this transmittal is a package of replacement text and a supplemental map addressing a revised <br />shrub density standard for the Hayden Gulch Mine Permit which has been approved by the Colorado Division <br />of Minerals and Geology (Division). The revised text and supplemental map should replace or be inserted in the <br />Hayden Gulch Mine Permit as follows: <br />• A revised Table of Contents for Exhibit II; <br />• A revised permit page which should replace the page submitted with Technical Revision 53 and <br />annotated as "Revised 8/87". The replacement page should be inserted approximately 3 8 pages <br />behind the tab labeled "Section 2.05.4" in Vollnne I of the August 1980 permit application; and, <br />• Supplemental map Exhibit F-F which should be inserted at the end of Exhibit II. <br />In addition, you will fmd a copy of the Division's Proposed Decision for Technical Revision No. 62 for the <br />Hayden Gulch Mine. <br />Please call me if you have any questions. <br />Sincerely, <br />TerraMa//trix Inc~J ~// <br />Michael R Neumann <br />Senior Scientist <br />Enclosure <br />ce: Joseph Dudash -Colorado Division of Minerals and Geology (w/o attachment) <br />Engineering 6 Environmrntal SeMtn <br />P0. Raz T/IO~B <br />ig75 Pine Grove Road <br />Steamboa[ 5pnngs, Colorado Rog77 <br />Phone g7o.B7gbz6o Fax g7o.87q.goq8 <br />Steamboa[ Spring Denver Fort Wllins SeaMe Srntlago <br />