5.3 Sketch Plan Review for The Preserve at Pequot Lakes - Premier Homes Inc

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centralized and designed and installed to meet or exceed applicable standards or rules of the Minnesota Department of Health and the Minnesota Pollution control Agency. On- site sewage treatment systems must be located on the most suitable areas of the development, and sufficient area free of limiting factors must be provided for a replacement standard soil treatment system for each sewage system. (2) Conservation subdivisions shall be connected to publicly owned water supply and sewer systems,if available. Where publicly owned water supply and sewer systems are not available, conservation subdivisions shall either establish dedicated areas for individual sewage treatment systems or establish centralized water supply and sewage treatment systems to serve the entire subdivision. F. Erosion control and Stormwater Management. Erosion control and stormwater management for developments must meet the standards in Section 17-8.2(3)(F). For planned unit developments,the impervious surface coverage shall not exceed 15 percent in either the total project area or the first tier. For conservation subdivisions, the impervious surface coverage for lots must meet the standards in 17-8.2(3)(F). Erosion control and stormwater management shall be designed by certified personnel in erosion and sediment control using the best management practices found in the latest Pollution Control Agency's stormwater best management practices manual, approved by the local government, and effectively implemented. (1) For post construction stormwater management,when possible, existing natural drainage ways,wetlands, and vegetated soil surfaces must be used to convey, store, filter, and retain stormwater runoff before discharge to public waters. When development density,topographic features, and soil and vegetation conditions are not sufficient to adequately handle stormwater runoff using natural features and vegetation,various types of constructed facilities such as diversions, settling basins, skimming devices,dikes, waterways, and ponds may be used. Preference must be given to designs using surface drainage,vegetated filter strips,bioretention areas, rainwater gardens, enhanced swales, off-line retention areas, and natural depressions for infiltration rather than buried pipes and human-made materials and facilities. (2) Development must be planned and conducted in a manner that will minimize the extent of disturbed areas,runoff Pequot Lakes Staff Report 5.3-6 March 17,2022