1. ELK RIVER LANDFILL - Laserfiche WebLink

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~..-~ This wetland receiving discharge from the site currently has two existing channel outlets, both of which eventually drain into Rice Lake. The north channel outlet, currently located on property owned by ERL will be utilized as the outlet channel for the southwest storm water pond. The channel outlet will be re-excavated to match the elevation of the more southerly outlet to ensure that flows through the south outlet onto the adjoining property are not significantly increased from the existing condition. Routine maintenance of the drainage control structures are initiated in response to general inspections or inspections prompted by a heavy rain. The sedimentation ponds will be cleaned periodically to maintain their optimum settling capacity. The location of the easement for the proposed stormwater discharge piping located under the City Trail is illustrated on the Drainage Plan Drawing (Sheet 4). The exact location and configuration of the downslope structures and conveyance piping discussed above may be revised in the future, but will be in general conformance with the stormwater routing and management system presented in this application. 1.2.5 LANDFILL CLOSURE CONSTRUCTION Final grading and closure of the landfill will be in accordance with the drawings included as ~~Final Cover Grading Plan" (Sheet 2). The grades of each closure phase will provide a uniform surface with adjacent phases to facilitate surface water drainage. Each closure construction phase, as well as the final closure of the landfill, will be done in accordance with approved plans and regulations. Upon completion of final closure of the expanded Landfill, County will record a deed notation for the property indicating what the property had been used for and pertinent details. The expanded Landfill will be closed in a series of phased construction projects. The anticipated closure sequence and timing for the expanded Landfill is shown in the following Table 2. The timing of closure construction will be dictated in part by incoming waste volumes, as well as site operations to maximize gas production. Closure of the landfill includes the engineered cover system, gas collection components, and the surface water controls as approved in permit documents. Table 2. Anticipated Closure Sequence and Timing Cell Number Approximate Year of Closure Approximate Acres Closed 18 2015/2016 8.35 19 2017/2018 7.64 20 2022-2030 31.5 City, as well as MPCA and County, will be notified of impending phased closure at the expanded Landfill prior to initiation of closure construction. The ERL will make any updates to the closure sequence as part of the facility's annual report. 1.2.6 LANDFILL END USE The current end use plan for the Landfill applies to the expanded Landfill. The end use plan provides for open green space. Long term, the open space planned for the site would be compatible with any adjacent future use. The final end use determined for the site will be ~;, consistent with the terms of the May 25, 2011 Agreement. Elk River Landfill SDA Section 1-5 Land Use Application ~V21~CI< ELR FIVL.x LLncFlCt