6.1 PRSR 04-10-2019 - Laserfiche WebLink

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Memorandum To: Michael Hecker, Park and Recreation Director From: Justin Femrite, P.E., Public Works Director Date: April 2, 2019 Subject: Elk River Landfill Leachate Conveyance System Attached are the plans that have been developed for the Elk River Landfill Leachate Conveyance System to be installed along the Great Northern Trail this summer. Council directed staff to finalize details for the extension of the public sewer system along the Great Northern Trail (GNT) to accommodate a permanent connection of a leachate conveyance system from the Elk River Landfill. This permanent connection is required to be complete for continued disposal of landfill leachate from the Elk River Landfill to Elk River’s public sewer system. The project will install a new publicly owned lift station north of the intersection of the GNT and 221 Avenue (page 33 of plans) and a forcemain installed from there to the existing sewer system located near the well house just north of Meadowvale Elementary school (page 21 of plans). The forcemain will be installed adjacent to the trail with manholes that extend to the surface in the boulevard space. The project will further include a parking area off of 221 Avenue that will serve the new lift station and support 10 public parking spaces for GNT users (page 33 of plans). Elk River Landfill will extend a private leachate pipe line from their site directly to the new public lift station near 221 Avenue. This pipeline will also be placed along the GNT right-of-way. The pipe lines will be constructed via directionally drilling methods which will limit disruption to drill pit and manhole locations. The construction will require closing of segments of the GNT for periods of time. Schedule for installation of the improvements will be during the summer months of 2019 attempting to avoid the highest use times in the spring and fall. We will work with the contractor to minimize closures. The development agreement details the responsibility of the Elk River Landfill to restore our trail to pre-project conditions. We will be closely examining the trail and boulevard conditions to make sure it is restored properly.