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then backfilled from the seals to the portal openings with soil and broken rock materials and <br />portal and face -up areas were backfzlled and graded to completely cover all portal structures, <br />establish a stable slope configuration, and eliminate exposed highwall areas. Limited backfzlling <br />was required against the highwall as this area was already stabilized. Backfzll material was <br />salvaged from the edge of the pad adjacent to Hubbard Creek. The pre -law refuse pile was not <br />re -disturbed and will not be reclaimed. <br />Final grading of backfzlled and other disturbance areas was completed to cover the portal <br />structures and associated facilities pad. The short section of Hubbard Creek that was affected <br />was regraded and stabilized with riprap. Straw bales were placed along the edge of the facilities <br />pad during and following backfzlling and grading activities to minimize sediment contributions <br />to the creek. The final topographic configuration of the Lower Hubbard Creek facilities area is <br />shown by the Hubbard Creek reclamation plan drawings included in Exhibit 2.05-E5, <br />Reclamation Details. <br />The pre -disturbance land use for this area was undeveloped land. The affected lands have been <br />reclaimed consistent with undeveloped public use lands in order to maintain public access to <br />public lands to the north and east. The affected portion of the Hubbard Creek road and the <br />associated culvert have been retained to provide continued public access to the nearby public <br />trailhead area. <br />Topsoil was not recovered or segregated during the construction of the Lower Hubbard Creek <br />facilities. Soil materials were mixed with and incorporated into other surfzcial and near -surface <br />materials during construction of the Lower Hubbard Creek portal bench. The surfzcial materials <br />exposed following regrading operations included mixed soils and weathered surfzcial and near - <br />surface materials. These materials were determined to be suitable as revegetation growth <br />medium and have been effective to date in supporting effective vegetative reestablishment. <br />In accordance with an agreement with the DMG, a vegetation study was conducted for the Bear <br />Creek and Hubbard Creek disturbance areas and adjacent undisturbed areas during the summer <br />of 1981. The results of this study are summarized in Exhibit 2.04-E6, Vegetation Information, <br />and graphically illustrated on Map 2.04-M8, Regional Vegetation. A revegetation plan, based on <br />the study results, is included in the vegetation study report in Exhibit 2.05-E6. Disturbed and <br />reclaimed areas were prepared and reseeded in 1995 -1996 consistent with the approved <br />revegetation plan. <br />The following summarizes the timing of reclamation activities that have or will occur for the <br />Lower Hubbard Creek facilities area. <br />1994 - The above ground facilities, including the concrete foundations, were demolished <br />and resulting demolition debris either removed from the site for disposal or buried in the <br />fill. Excavated material was placed against the limited steep slope areas. <br />1995-1996 - Final grading was completed and the area was prepared for seeding, <br />fertilized, and seeded in accordance with the revegetation plan outlined in Exhibit 2.04- <br />E6, Vegetation Information. <br />C-1981-022, SL-2 Page 13 of 23 <br />