6.1. SR 11-19-2001 - Laserfiche WebLink

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The proposed DC,-3 design provides for the disposal of demolition and construction debris atop the existing landfill within the transition zone, bdnging the area up to a 3:1 grade, consistent with the northern and southern areas of the landfill. This will not only eliminate the surface water issues over this area, but will also provide for a better overall final contour configuration of the entire western side of the landfill. The DC-3 area will be final covered with an MSVV cap, as ulflized over the rest of the ERI_ Although not required by Minnesota Solid Waste Rules, the proposed DC-3 design includes provisions for leachate management and collection. Leachate would be contained behind a lined berm, which would be constructed at the toe of the existing final cover. Leachate would be pumped from a sump into a leachate storage tank. The proposed berm would be constructed such that no additional waste would be placed outside the existing waste footprint. The DC-3 proposal does not extend the waste fill boundaries for the site. The attached grading and final contour plans show the location of the proposed DC-3 development. ERL provided detailed engineering plans to the City of Elk River, Sherbume County and the MPCA in the spdng of this year. ERL met with representa~ves of each ~organization to address specific engineering items to arrive at the current proposal, dated July 27~', 2001. The MPCA has public noticed this proposal, as well as the January 2000 repermit application and anticipates delivering a new permit to ERL by the end of October. Sherbume County an~dpates a st. afl revision to the County Ucense, with subsequent board approval. Pending City of Elk River Approval and favorable weather, ER.[. antidpates construction of the area by December 1. BUFFER/SCREENING CONSIDERATIONS As mentioned above, the DC-3 ama does not increase the waste fill footprint of the site. There will, however, need to be grading at the toe of the slope for the DC-3 berm. As well, as the rest of the site progresses in accordance with the approved January 2000 repermit plans, there will need to be grading and shaping of landfill berm sideslopes, extension of the sedimentation basin on the west side of the landfill, and the construction of access roads. The attached air photo shows the existing vegetation coverage elong the western side of the landfill. Tree loss can be viewed by overlying the proposed future development activities over the photo. ERL acknowledges the impedance saving and maintaining as many trees as possible and is very conscience of the need to screen the landfill from the trail users. ERL welcomes the opportunity to work with the City and/or the Trail Group to develop an acceptable plan, which would likely include .the placement of conifers along the west and south slopes of the sedimentation ponds (see attachment screening plan). · Page 2