In order to gain an understanding of the drainage requirements for a specific project, a developer may submit conceptual drainage plans and calculations for review by the city. The direction provided by the city during such a review is based on preliminary data and shall not be construed as an acceptance or binding on either party. The following is a general listing of minimum data requirements for the review of conceptual drainage plans:
(A) Three complete sets of conceptual plans showing general project layout, including existing and proposed drainage systems (plan sheets must be larger than 11 inches by 17 inches, but not to exceed 24 inches by 36 inches). Plans must be provided to the Building Commissioner who will supply a set to the MS4 Coordinator and the reviewing engineer.
(B) General description of the existing and proposed drainage systems in narrative form.
(C) Map showing on-site 100-year floodplain and floodway (please note if none exists).
(D) Map showing all wetlands, lakes, and ponds on or adjacent to the site.
(E) Watershed boundaries with USGS contours or best information possible.
(F) Two copies of drainage calculations detailing existing and proposed discharges from the site. One set shall be provided to the MS4 Coordinator and the other to the Building Commissioner.
(G) Existing watercourse or regulated drains.
(Ord. 10-2024, passed 7-8-2024)