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Mr. Tyler O'Donnell <br /> August 31,2016 <br /> Page 2 <br /> (b) The approximate volume of inert material to be backfilled; <br /> Response: <br /> The volume of inert material to be used as backfill for phase 18 is approximately 250,000 cubic <br /> yards of which 30,000 cubic yards will be cured concrete from RMCC's Brighton ready mixed <br /> plant. The balance of the backfill will be inert fill from on-site (Bromley Lakes) and from Cell <br /> No.1. <br /> (c) A signed affidavit certifying that the material is clean and inert,as defined in Rule 1.1(20); <br /> Response: <br /> Please see attached Affidavit <br /> (d) The approximate dates the proposed activity will commence and end,however,such dates shall <br /> not be an enforceable condition. <br /> Response: <br /> Phase 18 backfill will begin October 15`h, 2016 and be completed December 15, 2016 <br /> (e)An explanation of how the backfilled site will result in a post-mining configuration that is <br /> compatible with the approved post-mining land use;and <br /> Response: <br /> Back.filling Phase 18 as described on the enclosed revised Reclamation Plan (Exhibit "F') is <br /> intended to create a post-mining topography(elevations) that is compatible with the approved <br /> post-mining land use designation, which in part, comprises upland wildlife habitat in Cell 2 and <br /> upland wildlife habitat in the ARA Addition. <br /> (f)A general engineering plan stating how the material will be placed and stabilized in a manner <br /> to avoid unacceptable settling and voids. <br /> Response: <br /> Concurrent mining and reclamation of the Bromley Lakes Pit, including selective backfilling, is <br /> an ongoing process. Typically, backfilled material is placed in lifts by scrapper, the weight of <br /> the scrapper compacts the previous backfill lifts. A second backfill method involves the use of <br /> haul trucks to place the inert fill. The inert fill material is dumped adjacent to the area to be <br /> backfilled and a dozer is then used to place and compact the inert fill material. The above <br /> methods avoid the creation of voids that can lead to settlement. This approach to the placement <br /> of fill, whether from onsite or off-site sources, is consistent with the approved post-mining land <br /> uses designated in Cell 2 and the ARA Addition. <br />