(A) All subdivisions must be designed to accommodate storm drainage tributary to and originating within the subject subdivision.
(B) All on grade storm water conveyance facilities, including ditches, channels, catch basins, and road improvements must be designed and constructed for flood frequency of ten years or other threshold determined by the Public Works Director to be appropriate and necessary to provide adequate flood protection. All facilities serving sump locations must be designed for a flood frequency of 50 years or other threshold determined by the Public Works Director to be appropriate and necessary to provide adequate flood protection. The design of such facilities and systems is based upon information provided by a registered engineer and approved by the Public Works Director.
(C) To the maximum extent feasible, existing natural drainage courses must be retained.
(D) Facilities and systems must be designed to avoid concentrations of runoff and to avoid the creation of facilities that could pose a risk or hazard to public health and safety.
(E) Drainage facilities must be located with street rights-of-way or public easements.
(Ord. 1102, passed 6-7-04)