In addition to the requirements of Chapter 1163, the applicant shall furnish such of the following information as is deemed necessary by the Planning Commission for determining the suitability of the particular site for the proposed use.
(a) Plans in triplicate drawn to scale showing the nature, location, dimensions and elevation of the lot, existing or proposed structures, fill, storage of materials, floodproofing measures, and the relationship of the above to the location of the channel.
(b) A typical valley cross-section showing the channel of the stream, elevation of land areas adjoining each side of the channel, cross-sectional areas to be occupied by the proposed development, and high water information.
(c) Plan (surface view) showing elevations or contours of the ground; pertinent structures, fill, or storage elevations; size, location and spatial arrangement of all proposed and existing structures on the site; location and elevations of streets, water supply, sanitary facilities, photographs showing existing land uses and vegetation upstream and downstream, soil types and other pertinent information.
(d) Profile showing the slope of the bottom of the channel or flow line of the stream.
(e) Specifications for building construction and materials, floodproofing, filling, dredging, grading, channel improvement, storage of materials, water supply and sanitary facilities.
The Planning Commission may transmit one copy of this information described in this Section to a designated Registered Engineer or other recognized water management and flood control authority for technical assistance in determining whether the proposed use is located in the Floodway or Floodway Fringe; in determining the regional flood protection elevation; and in evaluating the proposed project in relation to flood heights and velocities, the seriousness of flood damage to the use, the adequacy of the plans for protection and other technical matters.