The plan requirements shall be:
(A) Elevation area capacity curves for the storage facility including notation of the storage volumes allocated to runoff, and permanent residual water storage for other uses (wet basins only);
(B) Inflow hydrographs (detention volumes for Rational Method) for the 15-, 25- and 100-year recurrence interval design storms;
(C) Stage-discharge rating curves for each spillway and for combined spillway discharges; and
(D) Routing curves for the 15-year and all greater criteria recurrence interval design storms with time plotted as the abscissa and the following plotted as ordinates (this division (D) is not required for the Rational Method):
(1) Cumulative inflow volume;
(2) Cumulative discharge; and
(3) State elevation.
(1994 Code, § 154.46) (Ord. 434, passed 4-26-1993)