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lot ITem the most current existing sources or from field investigations such as soil borings, or other methods~ 4) information regarding adequacy of domestic City water supply; extent of anticipated vegetation and topographic alterations; near-shore aquatic conditions, including depths, types of bottom sediments, and aquatic vegetation; and proposed methods for controlling stormwater runoff and erosion, both during and after construction activities~ 5) location of 100-year flood plain areas and floodway districts from existing adopted maps or data; and 6) a line or contour representing the ordinary high water level, the "toe'l and the "top" of bluffs. and the minimum building setback distances £rom the top of the bluff and the lake or stream. 18.080.4 Dedications. When an on-site storm water ponding area is required by a project to store surface water run off, the City may require easements over natural drainage or ponding areas for future maintenance of stormwater and significant wetlands. 18.080.5 Platting. AIl subdivisions that create three or more lots or parcels that are 2-112 acres or less in size shall be processed as a plat in accordance with City Subdivision regulations. 18.085 Planned Unit Development Requirements in Shoreland Areas 18.085.1 Types ofPUD's Permissible. Planned unit developments (PUn's) are allowed in shoreland areas for new projects on undeveloped land, redevelopment of previously built sites, or conversions of existing buildings and land, provided they comply with the requirements ofthis section. 18.085.2 Processing of PUD's. Planned unit developments shall be processed as a rezoning, subject to the procedures in Section 17. The total project density shall not exceed the allowable densities calculated in the project density evaluation procedures in Section 18.085.5 and 18.085.6. Approval cannot occur on any PUD until the state environmental review process (EA W lEIS) when required~ is complete. 18.085.3 Application for a PUD. The applicant for a PUD must submit the application documents listed in Section 17 of this code prior to review and final action being taken on the application request. 18.085.4 Site "Suitable Area" Evaluation. Proposed new or expansions to existing planned unit developments within the overlay district shall be evaluated using the following procedures and standards to determine the Usuitable area" for the construction site of the development. The suitable area shall be determined by excluding from the project development area all wetlands, bluffs, or land below the ordinary high water level of public waters. 18.085.5 Residential PUD "Base" Density Evaluation: The suitable area within each tier oflots adjacent to a DNR shoreland or City classified lake shall 20