The preliminary plat shall contain the:
(a) Boundary of the proposed subdivision indicated by a heavy, solid line and the approximate acreage comprised therein.
(b) Location, width, and names of all existing or platted streets or other public ways; railroads and utility rights of way; parks and other public open spaces; permanent buildings; section and corporation lines; within or adjacent to the tract.
(c) Existing storm and sanitary sewers, water mains, culverts, within tract or adjacent thereto, with pipe sizes and profile grades and depths indicated.
(d) Drainage ditches or channels, and other significant physical features.
(e) Names of abutting subdivisions or owners of abutting unplatted property.
(f) High water elevations in vicinity of rivers and lakes.
(g) Existing contours with intervals of not more than five feet where the slope is greater than ten percent and not more than two feet where the slope is less than ten percent. However, one foot contours are recommended and will be required in relatively flat topography. Elevations shall be based on sea level datum. Certain contour maps of the City are on file and information may be obtained therefrom.
(h) Description of existing bench mark used or source of survey data.
(Ord. 1955-5. Passed 3-1-55.)