4.2.a PCSR 05-23-2023 - Laserfiche WebLink

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PERMIT APPLICATION TO THE CITY OF ELK RIVER APRIL 2023 Conditional Use Permit 3.2 No buildings/structure s are proposed as part of the stormwater management system improvements. Signage (how many, proposed sizes, locations, type) No new entrances are proposed for the Landfill an d, therefore, new signage will not be required. Outdoor storage (what, how much, proposed screening) No outdoor storage is proposed on the additional property. 3.4 SITE, UTILITY, GRADING / DRAINAGE PLAN The grading and drainage plan for the 20-acre south pond area, including perimeter grading modifications to the southern portion of the Landfill within the previously permitted property boundary, is included as Figure 3. 3.5 LANDSCAPING PLAN The Landscaping/Screening plan for the 20-acre south pond area, including perimeter grading modifications to the southern portion of the Landfill within the previously permitted property boundary, is included in Attachment 2. The plan has been prepared by a registered landscape architect and incorporates a variety of tree types for screening purposes . As previously noted, the plantings shown will be established after final cover is in-place on the adjacent Landfill area. 3.6 DRAINAGE CALCULATIONS Drainage calculations are provided in Attachment 4. The final bottom elevation of the modified / expanded stormwater pond will be dependent on mining activities within the footprint. Based on the maximum bottom elevation of 964 as shown on the grading / drainage plan, the expanded pon d will manage the required 25-year, 24-hour storm event as well as larger storm events (with minimal discharge). Discharge from larger events will be retained on ERL property. 3.7 BUILDING ELEVATIONS / FLOOR PLANS Not applicable. 3.8 WETLAND DELINEATION / WETLAND MITIGATION Not applicable. There are no wetlands on the subject property; the property has been and will continue to be mined for sand and gravel resources.