_REPORT - M1995035 (7) - Laserfiche WebLink

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1 1 EXHIBIT E ' RECLAMATION PLAN ' The reclamation plan for the Wellington Downs site is a lined water storage reservoir. ' Phasine Reclamation will be concurrent with mining and therefore will be completed in phases. The first ' phase of reclamation will occur on the south end. As Connell mines the south side of the property, they will begin backfilling areas not included as part of the final reservoir. As mentioned earlier, stationary equipment will be placed on the south side for the extent of the project. Therefore, only ' the areas not expected to be disturbed for the remainder of the mining will be reseeded. The second phase of reclamation will involve sealing and backfilling. On-site overburden and the ' claystone bedrock will be used to seal the perimeter of the reservoir and the western edge of the mining limits to virtually illuminate the infiltration of groundwater into the property. As the reservoir shoreline and westem boundary are backfilled with overburden and claystone these areas ' will be compacted to create an aquitazd. Geotechnical testing was performed to determine the suitability of the on-site claystone material for the construction of the aquitard liner. These tests included double hydrometer analysis, Atterberg limits, standard Proctor, and falling head permeability. The results of the tests are included as ' Exhibit E-1. The results indicate the claystone material compacted to 96% of standard Proctor has a permeability of less than 10.6 cm/s and will be suitable a aquitazd liner. Scrapers will be used to place overburden and claystone material along the property perimeter. Wheel compaction by scrapers will be used to acquire the 95% compaction. The measure of compaction will be evaluated in the field. This will include an evaluation and possible changes in ' the water applications, lift thickness, and compaction method (wheel rolling, sheep's foot compactor, etc.) ' During initial stages of the liner construction, several in-place tests will be done to determine if the compaction method is sufficient to meet the 95% standard proctor design. Thereafrer Cortnell will ' be conducting regular on-going compaction testing. During Phase 2 and 3, Connell will establish a visual screen on the north and east sides. The screen ' will consist of a grass covered [here to four foot high berms and fast growing trees and shrubs. In Phase 3 through 7 Connell will mine from west to east. As these phases aze mined, Connell will closely follow with backfilling of overburden, capping with topsoil, and vegetating to minimize the amount disturbance at any one time. Once the backfilling gets to the proposed reservoir shoreline material will be graded to no steeper then a 3H:1 V slope.