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Mr. Tyler O'Donnell <br />May 8, 2015 <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 is approximately 330, 000 cubic yards for <br />Cell No.2 and 170, 000 cubic yards for the ARA Addition. <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 />Use of the inert material from the City's municipal water projected within the approved permit <br />area commenced in early 2015 and is projected to conclude in 2017. <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 />The backfilled sites described on the enclosed DBMS approved Reclamation Plan (Exhibit "F") <br />are intended to create a post -mining topography (elevations) that is compatible with the <br />approved post=mining land use designation, which comprises wetland and upland wildlife <br />habitat in Cell 2 and 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 <br />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 />