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Municode Page 3 of 5 <br />(2) <br />n. <br />Revised in accordance with sketch plan comments and staff review letter. <br />o. Additional information as requested by the city. <br />Final grading plan: <br />a. For subdivisions inside the MUSA boundary, topographic data, including <br />contours at vertical intervals of not more than two feet, except that where the <br />horizontal contour interval is 100 feet or more, a one -foot vertical interval shall <br />be shown. USGS datum survey shall be used for topographic mapping. <br />b. Watercourses, lakes wetlands, limits of floodplains and other significant <br />physical features shall be delineated. The ordinary high-water elevation and <br />100-year floodplain elevation shall be identified. <br />c. If the subdivision is to be serviced with on -site systems, the soil types shall be <br />identified. For each lot having less than 25 percent Class I soils, the location of <br />a septic field and alternative field must be identified. <br />d. Locations and invert elevations of storm sewers and drainage ditches and <br />culverts within the plat and to a distance of 100 feet beyond the plat. <br />e. Proposed method of conveying surface water drainage within and beyond the <br />limits of the plat to publicly owned or controlled drainage facilities or storm <br />sewers. <br />f. Proposed method of disposing of surface water drainage and method of <br />conveying surface water drainage within and beyond the limits of the plat to <br />publicly owned or controlled drainage facilities or storm sewers. There shall be <br />no grades less than one percent. When grades are less than two percent, a <br />certificate of grading will be required prior to the occupancy. The certificate of <br />grading shall provide a statement from a registered land surveyor stating that <br />such surveyor has surveyed the lot and determined that it contains no grade <br />flatter than one percent and conforms to the approved grading plan. <br />g. For subdivisions within the MUSA boundary, lot corner elevations as well as <br />drainage swale centerline grades at intersections of lot lines. <br />h. Drainage and utility easements. <br />Direction of flow arrows in and around house pads. <br />Revised in accordance with sketch plan comments and staff review letter. <br />k. Additional information as requested by the city. <br />(3) Final landscape plan/tree preservation plan: <br />a. <br />b. <br />Survey of existing tree cover prepared by an International Society of <br />Arboriculture (ISA) certified arborist that shall include the following information: <br />1. <br />2. <br />3. <br />4. <br />Location of proposed lots and building pads. <br />Tree species, diameter (dbh), condition (healthy, dead or diseased). Any <br />development involving oak trees on or adjacent to the development area <br />must submit a plan in conjunction with the preliminary plat. <br />Soil conditions. <br />Existing contour data for the entire property with vertical contour data <br />consistent with city standards for all areas to be disturbed by proposed <br />tree removal operations, extending for a distance of at least 50 feet <br />beyond the limits of the proposed plat. Elevations may be based on U.S. <br />Geological Survey data. <br />http://library.municode.com/print.aspx?h=&clientlD=14286&HTMRequest=http%3a%2f... 1/29/2014 <br />