§ 158.18 PRELIMINARY AND FINAL PLAT REQUIREMENTS.
   (A)   The following information shall be submitted for preliminary plat review. Graphic scale for any maps shall not be more than 100 feet to 1 inch.
      (1)   Identification and description.
         (a)   Proposed name of the subdivision. This name shall not duplicate or be alike in pronunciation of the name of any plat theretofore recorded in the county;
         (b)   Legal description of the property;
         (c)   Name and address of the record owner and any agent having control of the land; the name and address of the subdivision, land surveyor, engineer, and designer of the plan;
         (d)   North point and vicinity map of area showing well known geographical points for orientation within a 1/2-mile radius; and
         (e)   Date of preparation.
      (2)   Existing conditions.
         (a)   Boundary lines shall be shown clearly and to such a degree of accuracy that conforms to the plat in that no major changes are necessary in preparing the plat;
         (b)   Existing zoning classifications for land in and abutting the subdivision;
         (c)   Approximate total acreage;
         (d)   Location, right-of-way width, and name of existing or platted streets or other public ways, parks and other public lands, significant physical features/natural resources, permanent buildings and structures, easements, and section, corporate, and school district lines within the plan and to a distance of 300 feet beyond;
         (e)   Location and size of existing sewers, water mains, culverts, wells, septic systems, drain tile, or other underground facilities within the preliminary plat area and to a distance of 100 feet beyond. Such data as grades and location of catch basins, manholes, hydrants, and street pavement width and type shall also be shown;
         (f)   Boundary lines of adjoining unsubdivided or subdivided land within 100 feet, identified by name and ownership, and including all contiguous land owned or controlled by the subdivider;
         (g)   All wetlands shall be field delineated by a qualified and experienced delineator and shown appropriately on the preliminary plat. A copy of the wetland delineation report shall be submitted. Mapping must show surveyed location of all wetland boundary markers;
         (h)   Topographic data, including contours at vertical intervals of not more than 2 feet, except in those areas where the slope is less than 1% a 1-foot vertical interval shall be shown. Watercourses, marshes, wooded areas, rock outcrops, power transmission poles and lines, and other significant features shall also be shown. National Geodetic Vertical Datum 1929 Adjustment or North American Vertical Datum of 1988 shall be used for all topographic mapping, except where benchmarks are not available within 1/2 mile of site. Benchmarks shall be established on-site and shown on map. At the discretion of the Zoning Administrator, spot elevations may substitute for the 1-foot contour intervals;
         (i)   A copy of all proposed private restrictions;
         (j)   In areas where public sewer is not available, 2 soil borings shall be completed on each lot with results being submitted to the City Building Department. If it appears that soil may not be suitable on any lot for the installation of an on-site septic system, additional borings and percolation tests may be required at the discretion of the Department;
         (k)   Soil types and location of limits of each soil type as shown in the Soil Survey of Washington County. If severe soil limitations for the intended use are noted in the Soil Survey on file in the Washington Soil and Water Conservation District Office, a plan or statement indicating the soil conservation practice or practices to be used to overcome the limitation shall be submitted as part of the application;
         (l)   For lands proposed to be platted in the St. Croix River District, the bluffline and all slopes over 12%, with a horizontal distance of 50 feet or greater, shall be delineated. In Shoreland Districts, all slopes over 18%, with a horizontal distance of 50 feet or greater, shall be delineated. Slopes in excess of 25% shall be delineated on all properties;
         (m)   On all lakes, ponds and wetlands, all water surface elevations, ordinary high water elevation and 100-year flood elevations shall be denoted unless deemed unnecessary by the Zoning Administrator; and
         (n)   The applicant shall document the path of each drainage way from the proposed development to the first DNR protected water within 1 mile of the project.
      (3)   Subdivision design features.
         (a)   Layout of proposed streets showing right-of-way widths and proposed names of streets. The name of any street shall conform to the Washington County Uniform Street Naming and Property Numbering System as applicable;
         (b)   Location and widths of proposed alleys, pedestrian ways, and utility easements;
         (c)   Lot and block numbers, preliminary dimensions of lots and blocks and area of each lot. The buildable area of each lot, excluding slopes over 25%, required setbacks and drainage easements shall be noted;
         (d)   Proposed front, side, and rear building setbacks as well as setbacks from water bodies;
         (e)   Location and size of proposed sanitary sewer lines and water mains or proposed city sewer and water systems;
         (f)   Gradients of proposed streets and sewer lines. Plans and profiles showing locations and typical cross-sections of street pavement, including curbs, gutters, sidewalks, drainage easements, servitude rights-of-way, manholes, and catch basins;
         (g)   Areas (other than streets, alleys, pedestrian ways, and utility easements) intended to be dedicated or reserved for public use, including the size of such areas(s) in acres;
         (h)   Grading and drainage plan for entire subdivision. If any fill or excavation is proposed in a wetland or lake, approval may be required from the Minnesota Department of Natural Resources, Army Corps of Engineers, local governmental unit and/or Watershed Management Organization; and
         (I)   Erosion and sediment control plan.
      (4)   Other information.
         (a)   Statement of the proposed use of lots stating type of residential buildings with number of proposed dwelling units; type of business or industry so as to reveal the effect of the development on traffic, fire hazards, and congestion of population;
         (b)   Source of water supply;
         (c)   Provisions for sewage disposal, surface water drainage, and flood control;
         (d)   Where the subdivider owns property adjacent to that which is being proposed for the subdivision, the Planning Commission may require the subdivider to submit a sketch plat of the remainder of the property so as to show the possible relationships between the proposed subdivision and future subdivision. In any event, all subdivisions must be shown to relate well with existing or potential adjacent subdivisions and land use. If the plat contains either a temporary or permanent cul-de-sac, a plan showing the potential for development of adjacent property may also be required; and
         (e)   Such other information as may be requested by the Zoning Administrator, the City Engineer, or the Planning Commission/City Council.
(Prior Code, Ch. 401 § 701.01)
   (B)   The following information shall be submitted for final plat review.
      (1)   The final plat shall be prepared by a land surveyor who is licensed in the State of Minnesota and shall comply with the provisions of Minnesota state statutes, these regulations, and the Manual of Standard Procedure for Platting in Chapters 154 through 159.
      (2)   The subdivider shall submit, with the final plat, an opinion title prepared by the subdivider's attorney or a current title insurance policy or commitment certified to within 30 days of submission of the final plat to the City Council for approval.
      (3)   On the final plat, the lowest floor elevation of the buildings shall be shown for all lots abutting a water body. Such elevation shall be at least 2 feet above the 100-year flood elevation. A durable benchmark shall be established and shown on the map.
(Prior Code, Ch. 401 § 701.02)