Where uncertainty exists as to boundaries of districts as shown on the Official Zoning Map, the following rules shall apply:

   1.   Boundaries indicated as approximately following the centerlines of streets, highways, alleys, or other public rights-of-way shall be construed to follow such centerlines.

   2.   Boundaries indicated as approximately following platted lot lines shall be construed as following such lot lines.

   3.   Boundaries indicated as approximately following section lines, quarter section lines, or quarter-quarter section lines shall be construed as following such lines.

   4.   Boundaries indicated as approximately following City limits shall be construed as following such City limits.

   5.   Boundaries indicated as approximately following the centerlines of streams, rivers, canals, lakes, or other bodies of water shall be construed as following such centerlines.

   6.   Boundaries indicated as following railroad lines shall be construed to be midway between the main tracks.

   7.   Boundaries not capable of being determined in the previous paragraphs shall be as dimensioned on the Official Zoning Map or, if not dimensioned, shall be determined by the scale shown on the map.