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28 <br />(d) Permanent boundary markers, in the form of signage approved by the City of <br />Lino lakes, should be installed prior to final approval of the required clearing and <br />grading plan. <br />(11)(12) Stormwater management plan required exhibits. The stormwater <br />management plan shall be prepared and signed by a duly licensed engineer in the State <br />of Minnesota. The following exhibits must accompany the permit application: two plan <br />sets, full size (22 inches by 34 inches); and one electronic copy in a .pdf one plan set, <br />reduced to maximum size of 11 inches by 17 inches. Additional copies may be required <br />in accordance with applicable zoning and subdivision provisions of city code. Allformat. <br />All plan sets shall also be submitted electronically in a .dwg format or as otherwise <br />determined by the City Engineer. The minimum information requirements of the <br />stormwater management plan shall be consistent with the most recent version of the <br />NPDES permit requirements and include the following information: <br />(a) A grading, erosion and sediment control plan and, for projects that require a <br />NPDES permit, a stormwater pollution prevention plan (SWPPP) is required; <br />(b) Stormwater management plan including existing and proposed hydrologic <br />calculations for total runoff volume and peak discharge rates as described in this <br />chapter, including: <br />1. A narrative including a project description, discussion of BMP selection, <br />incorporation of infiltration BMPs, and revegetation plan for the project site; <br />2. Delineation of all drainage areas, including contributing runoff from off-site <br />areas, proposed and existing subwatersheds on-site, emergency overflows, and <br />drainage ways; <br />3. Existing, proposed, and total amount of impervious surfaces created by <br />the project; <br />4. Existing and proposed runoff curve numbers; <br />5. Time of concentration used in calculations; and <br />6. Existing and proposed total runoff volume and peak discharge rates for <br />the two-, ten-, and 100-year critical events utilizing NOAA Atlas 14. <br />(c) Property of lines and delineation of lands under ownership of the applicant. <br />(d) Locations of all stormwater management practices, infiltration areas, and <br />areas not to be disturbed during construction. <br />(e) Location of all drain tiles on the project site shall be identified. <br />(f) Location and engineered designs for structural stormwater management <br />practices including stormwater treatment devices that remove oil and floatable material <br />(e.g., basin outlets with submerged inlets). <br />(g) Normal water level, high water level, and emergency overflow elevations for <br />the site and all ponding systems related to NAVD88. <br />(h) Identification of existing and proposed one-foot contour elevations within the <br />project site related to NAVD88.