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February 1998 Hayden Gu[rh Mine `Phan 1 fr 3 Bond Release Appllcatian ~ Page 13 <br />3) <br />Have Been <br />• rtcn:evea ror t ne t.asr two ~,onsecuctve rear: <br />• Exhibit 1, 1996 and 1997 Reclamation Study for Final Bond Release, presents <br />results of the revised 1996 and 1997 vegetation sampling data. Original <br />evaluation of the 1996 data was provided to DMG in a separate report dated <br />March 12, 1997. As discussed above in Section 1.3, Requirements for Phase II <br />Bond Release, all revegetation success criteria for the reclaimed azea have been <br />met. <br />Consequently, the reclaimed area at the Hayden Gulch Mine meets the <br />vegetation bond release criteria of Rule 4.15.8 and the reclamation and <br />revegetation standards set forth in the approved Hayden Gulch Mine Permit. <br />4) Documentation That The Approved Post-Mining Land Uses Have Been Achieved: <br />The approved post-mining land uses are livestock grazing and wildlife habitat. Various <br />operator and DMG inspections serve to document that the post-mining land uses have <br />been achieved. Wildlife have been allowed unrestricted use of this area throughout the <br />reclamation period except for the shrub exclosure areas during the last two years. Elk <br />and deer sign in the form of tracks and droppings are abundant throughout the <br />reclamation area. Numerous sightings of elk, deer, antelope, sharp-tail grouse, water <br />fowl and raptors have been reported. Ponds HG-8 and 003 have been utilized by the <br />livestock and wildlife as a water source and have been occupied by ducks, muskrats and <br />• beaver. HGCC has had numerous discussions with DMG regarding the occurrence of <br />livestock grazing on the reclaimed area. There has been occasional, unauthorized, light <br />livestock grazing during the reclamation period. While the livestock grazing was not <br />initiated by HGCC, the preference for the area displayed by the livestock along with <br />the use by wildlife suggests that the post-mine land rues have been achieved. <br />5) Sur/ace And Ground Water Quantity And Quality Impact Analysis: <br />HGCC performed an updated hydrologic impact analysis for the Hayden <br />Gulch Mine. A copy of the report, Hydrologic Impact Analysis for the Hayden <br />Gulch Coal Mine (HIA) is included as Exhibit 7. Hydrologic data collected by <br />HGCC was evaluated with respect to potential impacts projected in the <br />approved Probable Hydrologic Consequence (PHC) and the applicable <br />Cumulative Hydrologic Impact Srudy (CHIS) which were prepared by the <br />Mined Land Reclamation Division (NERD) as part of the Proposed Decision <br />and Findings of Compliance (NERD, 1987). The HIA indicates chat on-site <br />impacts have been minimized and that off-site impacts have been prevented. <br /> <br />Map 3, Hydrologic Monitoring Stations shows the locations of ground water, seep/spring and <br />surface water monitoring sites. Results of monitoring programs as well as the HIA are <br />summarized in the following settions. Complete results and data evaluations aze presented in <br />the HIA contained in Exhibit 7. <br />Montgomcry Wauan Amcricas (dha TerraMatnxJ • P.O. Box 774018 <br />S[eamboat Springs, Colorado 80477 • (970J 879-6160 <br />W. \Ill\hv I4 J ReN RdaeAppumn \Tm~Aue l4 J Rmd RdueApplrm, <br />In6Nd Jn <br />