A drainage area map shall be submitted for review, before and after development, as follows:
(A) An aerial photograph with a scale of one inch equals 100 feet must be supplied with the entire drainage area and all sub-areas noted, along with all existing land use conditions. Contours shall be at a minimum of two-foot intervals.
(B) All existing drainage facilities must be noted along with all necessary field data.
(C) All natural waterways must be noted and cross-sections of all waterways must be submitted along with any other data to sufficiently determine the exact time of concentration or travel time.
(D) All existing and proposed modifications to the drainage system must be noted.
(E) A complete storm sewer design, noting all proposed storm sewers, culverts and other storm water management facilities, must be submitted.
(F) The emergency flow way must be shown on this plan, i.e., the flow route for a 100-year storm conveyed through the proposed project.
(Ord. 1-91, passed 1-7-1991)