A plan of the proposed stormwater drainage systems,
including storm drainpipes and inlets, runoff control devices, drainage
channels, swales, structures, detention basins and other stormwater
management facilities and BMPs. All existing drainage features which
are to be incorporated in the design shall be so identified with an
explanation of the operations of the facilities. The drainage areas
into each inlet or structure must be delineated on the plan of the
stormwater drainage system.