919.13   MASTER PLAN.
   The Stormwater Management Utility shall establish and maintain a Master Plan for stormwater management needs. The Master Plan may provide, or be accomplished by, maps or other descriptive material which shall include the following:
   (a)   An inventory of the existing stormwater facilities, including the extent and area of each watershed tributary to the main drainage channels in the City;
   (b)   The street storm sewers and other storm drains to be built;
   (c)   The parts of the street system where pavements are planned to be depressed sufficiently to convey or temporarily store runoff and overflow from storm sewers, and the outlets for such temporary storage;
   (d)   Existing streams and floodplains to be maintained, enlarged, altered and eliminated, and new channels to be constructed;
   (e)   Existing culverts and bridges, and new culverts and bridges to be built;
   (f)   Existing detention/retention ponds and basins to be maintained, enlarged or altered, and new ponds or basins to be built;
   (g)   A tabulation of storage volumes, water surface elevations and outflow rates for detention/retention basins; and
   (h)   A plan for future stormwater facility development, including estimates of cost and a prioritization of projects.
(Ord. A-1947. Passed 3-14-94.)