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• 1997 ANNUAL RECLAMATION REPORT <br />Existing Disturbance <br />During 1997, 30.96 acres of new disturbance was associated with the mining program at New <br />Horizon 2 Mine. The 1997 Seeding and Disturbance Maps, Exhibit 97.1 and 97.2, show existing <br />disturbance v-eas as of December 31, 1997. <br />Backfillin~ and Grading <br />During 1997, 44.83 acres were graded at New Horizon 2. Backfill grading was accomplished <br />by backfilling the empty pit with a tnrck-shovel fleet and then final grading with D-9 dozers and <br />14G grader. <br />Soil and Spoil Scarification <br />The following soil and spoil scarification tecluiques were used while grading the reclaniation <br />area. Prior to growth media soil replacement, the final graded spoil was scarified to a depth of <br />l2 to 18 inches using ripper shank attached behind a motor grader. This scarifying operation <br />effectively reduce compaction, reduce runoff, and improve infiltration, wlle improving rooting <br />depths. <br />Soil and Spoil Monitorine Data <br />• New Horizon Mine is required by Permt C-81-008 to monitor replaced soil and final graded <br />spoil and submit the information to the Division. Monitoring programs include verifying soil <br />replacement thickness and detern~ining final graded spoil quality. Exhibit 97.5, topsoil thicloress <br />and sample location map, and 97.6, sub-soil sample location map, shows the location of the <br />sample sites along with the thickness of soil replacement. <br />Spoil Quality <br />T7~ie spoil sampling and analysis program approved for New Horizon Mine is described in Tab <br />21 of Permit C-81-008. Spoil samples were collected from 65 sites in the New Horizon 2 area. <br />Samples were collected from the sidewalk of four foot deep pit, excavated with a rubber tired <br />baclchoe. All spoil samples were shipped to Colorado State University Soil Testing Lab in Fort <br />Collins, Colorado for analysis. <br />The location of each spoil pit is shovt~n on Exhibit 97.6, Bac~ll San~pling Location Map. <br />Laboratory results for the 65 spoil samples are presented in Attaclunent 97.A. The anal~nical <br />results indicate all spoil is suitable. No additional grading, special handling, or amendment <br />application was needed prior to soil replacement. <br />Soil Redistribution <br />The topsoil that was used fa• redistribution was live handled from ahead of the active mining <br />ru-ea to the awaiting bacl~ll area. Phase VIII topsoil campaign was done in December. A total <br />of 102,483 cubic yards was moved. <br /> <br />(r. \data\wpdata\97recrepo.doc) <br />