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2002 ANNUAL RECLAMATION REPORT NH1 No activity occurred on the NH1 area in 2001. Fertilizerwas applied at a rate of 250#/acre to the small 6.4 acre area in the NW corner of the permit. Exhibit 2002-1 shows the location, as well as the 15` and 2"d cut pasture yield of about 10.0 st (3,125 Ib/acre) each, from the 6.4 acre area. For reference, Exhibit 2002-2 shows the pre-1993 disturbance at NH1. Please note that the NH1 boundary changed in 2001 as a result of MR-52. NH2 Existing Disturbance During 2002, 30.83 acres of new disturbance was associated with the mining program at the New Horizon 2 Mine. The 2002 Disturbance and Seeding Maps, Exhibit 2002-3 and 2002-4 respectively, show the areas either disturbed, reseeded, or both, during 2002. Backfilling and Grading • During 2002, 22.83 acres (see Exhibit 2002-7) were graded at New Horizon 2. Backfill grading was accomplished by backfilling the empty pit with atruck-shovel fleet and then final grading with D-9 dozers and 14G grader. Soil and Spoil Scarification The following soil and spoil scarification techniques were used while grading the reclamation area. Prior to growth media soil replacement, the final graded spoil was scarified to a depth of 6 to 18 inches using ripper shanks attached behind a motor grader or a D-9 or equivalent dozer. This scarifying operation effectively reduced compaction, reduced runoff, and improved infiltration, while improving rooting depths. Soil and Spoil Monitoring Data New Horizon Mine is required by Permit C-81-008 to monitor replaced soil and final graded spoil and submit the information to the Division. Monitoring programs include verifying soil replacement thickness and determining final graded spoil quality. Exhibit 2002-6 (topsoil thickness and sample map), and 2002-7 (backfill spoil sample map), shows the locations of the sample sites along with the thickness of the topsoil replacement. Spoil QualitvThe spoil sampling and analysis program approved for New Horizon Mine is described in Section 2.05.4(2)(d)-4 Regraded Spoil Monitoring Program of Permit C- 81-008. Backfill spoil samples for 2002 were collected from three sites in the New Horizon 2 area. The sample was collected from the sidewalls of four foot deep pit that . was excavated with a rubber tired backhoe or from a 4 foot deep soil auger hole. Spoil samples are shipped to Servi-Tech Laboratories in Hastings, NE for analysis. However, (F:\eng\datalwordlann reclaim rpl\2002recrepo.doc)