3B - Preliminary Common Interest Community Plat

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UMMUNIT"YGROWTH coo 1 AI S T 1 T U T E Peut rperts in Small Town Planning Lakes.. .-,. The subdivider shall be responsible to provide the proposed subdivision with adequate spacing between building sites, onsite sewage disposal sites, and potential well locations to allow the well installations in conformance with the City of Pequot Lakes Zoning Ordinance requirements or the subdivider shall provide the lot with a cluster water supply system to be owned and operated by a property owner's association or the subdivider shall provide municipal water service to the lot. i. A municipal water system shall be extended to the lot at the expense of the subdivider by agreement in the Development Contract between the subdivider and the Council if the existing municipal system is adjacent to the parcel being subdivided or reasonably close in the opinion of the engineer and Planning Commission or if the density of the proposed development necessitates a municipal water connection. The watermain shall also be extended to the exterior boundary at locations designated by the Engineer. Section 17-9.9 DRAINAGE/GRADING STANDARDS The subdivider shall consider the retention of natural stormwater/snowmelt drainage patterns in the design of his proposed subdivision.The subdivider shall be responsible to provide adequate drainage facilities for his development and upstream properties. i. Drainage Plan(s). All subdivisions shall demonstrate provisions for adequate surface or subsurface runoff of storm water and snow melt directed to natural drainageways. 2. All natural drainageways draining properties upstream from the subject property shall be identified and preserved, and no structures shall be less than one (1) foot above the water level in the drainageway created by a storm of a ioo-year, 24-hour rain event. No filling of areas inundated by the ioo- year, 24-hour rain event shall be allowed. 3. Additional runoff for a loo-year, 24-hour rain event from all streets and building sites at build-out shall be accounted for and maintained within the development. 4. Natural or manmade storage areas shall be utilized where needed and shall be designated by drainage and utility easement by the subdivider. All storage areas shall be vegetated and designed to lower naturally after a storm. 5. All drainage structures or improvements provided shall be sufficient in size to pass a loo-year, 24-hour storm event through the natural drainageway. 6. All areas disturbed by grading, street construction or structure installation shall be covered with a minimum of 3-inches natural topsoil and seeded. Drainageways over 2%in gradient shall,at a minimum,be sodded. 7. All parking areas, heavy use areas, storage areas and impervious area shall be diverted to a basin designed to allow entrapment of silts and nutrients prior to discharge to a natural drainageway. 8. There shall be no discharge of untreated stormwater to a water body. 9. Erosion control measures shall be provided as needed to prevent and/or contain erosion. Staff Findings:The Staff provides the following findings of fact for consideration: Pequot Lakes Staff Report 3(b)-4 May 21,2009