1995-05-02_PERMIT FILE - M1995035 (4)

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EXHIBIT E RECLAMATION PLAN The reclamation plan for the Wellington Downs site is a lined water storage reservoir. Phas;og Reclamation will be concurrent with mining and therefore will be completed in phases. The first phase of reclamation will occur on the south end. Once Connell has completed mining the south side of the property, they will begin backfilling. They will backfill this area to closely match the preexisting grade. The majority of their processing equipment will remain at the south end of the property for the extent of the project. Therefore, only the azeas not expected to be disturbed for the remainder of the mining will be reseeded. The second phase of reclamation will be the lining and sloping of the reservoir pazameter. Exhibit F includes a cross section of the preliminary shore liner design. Overburden and clay will be used to seal the reservoir. As the perimeter slopes aze backfilled with the overburden and clay, they will be compacted to create an impervious core azea to seal off the reservoir from the groundwater aquifer. The pit floor is a claystone, and will complete the impervious lining of the pit. The shoreline will be sloped to 3H:1 V. The suitability of the on-site overburden material for the construction of the compacted shoreline reservoir liner was performed. The results of the tests aze included as Exhibit E-1. The permeability of the overburden material compacted to 95% standazd proctor is suitable for a reservoir liner. Scrapers will be used to place overburden material along the perimeter of the reservoir. 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 [o determine if the compaction method is sufficient to meet the 95% standard proctor design. Thereafter Connell will be conducting regulaz 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 four foot high berms and fast growing trees and shrubs. Connell plans to mine to the claystone bedrock. The claystone is generally competent and will withstand erosional forces. However, some azeas might not contain marketable sand and gravel down to the bedrock. This azeas will remain exposed until the reservoir is filled with water. To help suppress dust, Connell will consider seeding azeas of the reservoir bottom that have a high potential for dust emission.