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Exhibit A Definitions. City definitions: Lot area (Zoning Code) means the area of a lot in a horizontal plane bounded by the lot lines, but not including any area occupied by the waters of a duly recorded lake or river or wetland or area which has been dedicated as public right-of-way. Lot area, minimum, (Subdivision Code) means minimum area required for each proposed lot as prescribed in chapter 78. In rural zones not served by sanitary sewer, each lot must contain a minimum of two acres of contiguous dry buildable land exclusive of wetlands, public and private rights-of-way, vehicular or pedestrian easements, surface areas below the ordinary high water mark of any surface water or areas at or below the floodplain elevation for a specific property. All rural lots must comply with chapter 58, article II. In urban areas served by sanitary sewer, each lot must contain contiguous dry buildable land equal to the minimum areas as prescribed in chapter 78 or half-acre, whichever is less (exclusive of public and private rights-of-way, vehicular or pedestrian easements, surface areas below the ordinary high water mark of any surface water wetlands or areas at or below the floodplain elevation for a specific property), and have legal access to the building site without encroachment of a wetland or floodplain area. Steep Slope means lands having average slopes of 12 percent or greater as measured over horizontal distances of 50 feet or more, that are not bluffs. Bluff means a topographic feature, such as a hill, cliff or embankment, having the following characteristics (An area with an average slope of less than 18 percent over a distance of 50 feet or more shall not be considered part of the bluff): (1) Part or all of the feature is located in a shoreland area; (2) The slope rises at least 25 feet above the ordinary high water level of the water body; (3) The grade of the slope from the toe of the bluff to a point 25 feet or more above the ordinary high water level averages 30 percent or greater; and (4) The slope must drain toward the water body. Bluff, toe of the, means the lower point of the lowest 50-foot segment with an average slope exceeding 18 percent. If the lowest such point is lakeward of the OHWL, the OHWL will be defined as the toe. Bluff, top of the, means that point on the cross section of a bluff below which the slope becomes more than 18 percent and above which the average slope for a distance of 50 feet or more is 18 percent or less. Minnesota Administrative Rules 6120.2500 Definitions: Steep slope. Subp 15b. "Steep slope" means land where agricultural activity or development is either not recommended or described as poorly suited due to slope steepness and the site's soil characteristics, as mapped and described in available county soil surveys or other technical reports, unless appropriate design and construction techniques and farming practices are used in accordance with the provisions of these regulations. Where specific information is not available, steep slopes are lands having average slopes over 12 percent, as measured over horizontal distances of 50 feet or more, that are not bluffs. Septic rules. Mn Rules 7080.2230 subpart B. “At-grade systems must not be installed in areas with slopes greater than 25 percent.”