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February 7998 Hayden Gulch Mine "Phase 2 fr 3 Bond Release Application ~ PaPe 12 In order to meet the requirements of Rule 4.15.7(5), that `...revegetation success criteria...shall . be met for at least the lazt two consecutive years of this period of responsibility.", HGCC conducted vegetation sampling at the Hayden Gulch Mine during August 1996 and July 1997. The results of the vegetation sampling are included in Exhibit 1, 1996 and 1997 Reclamation Study For Final Bond Releaze. As discussed in Section 1.1, Introduction, DMG currently holds a corporate surety bond for 52,300,000. The current outstanding bond liability for the Hayden Gulch Mine is 5551,280. Section 1.3, Requirements for Phaze II Bond Releaze, documented HGCC's request for a Phaze II bond release of 5196,271. As part of the Phase III bond release, HGCC is requesting an additional bond reduction of $305,249. The Phaze lIl bond liability release amount was calculated using unit costs and quantities developed by DMG in the Reclamation Cost Summary dated April 18, 1996. The Reclamation Cost Summary and bond reduction calculations are included in Exhibit 3, Hayden Gulch Mine Phaze II/Phaze III Bond Liability Reduction Calculations. An outstanding bond liability will remain for the four small parcels excluded from this Bond Releaze Application. The estimated outstanding bond liability is $49,760, which should be adequate to cover any maintenance costs on, or the cost to revegetate, the four parcels. Following is specific information required for the Phase III Bond Release as outlined in the Bond Release Guideline: 1) Documentation That The Ten-Year Minimum Period Of Responsibility Has Been SatisFed: • • Map 1, Phase II/Phase III Bond Release Map, includes the reclamation sequence and shows the year when reclamation of the mine stte and facilities area was completed. Generally, that reclaimed areaz were only seeded one time, typically during the fall of the year final reclamation of the parcel took place. Rills and gullies have not been a problem at the Hayden Gulch Mine, and except for minor maintenance, the reclaimed disrurbance areas have not needed rill or gully repair work. Table 1, Reclamation Management at the Hayden Gulch Mine, summarizes the reclamation and management history at the mine. 2) Map Showing Revegetated Areas, Each Year's Sampling Observation Locations, And The Map 1, Phase II/Phaze III Bond Release Map, shows the dis[urbance area boundary which was generally revegetated between 1979 and 1987. Exhibit 1, contains maps illustrating the Following: 1996 Reclamation Study Sample Site Locations, 1996 Reference Area Sample Site Locations, 1997 Reference Area Sample Site Locations, and 1997 Reference Area Sample Site Locations. Montgomery Watton Americas (dba TenaMatrixJ "PO. Box 774018 Steamboat Springs, Colorado 80477 `(970J 8796260 'D 1/)tVYU t bl6inl AdarAAAlunn\Tm Vfy~) b J MMAdm Aflyliuvun /]NW J.