§ 152.32 CHARACTERISTICS OF DRAINAGE FACILITY.
   The drainage facility shall:
   (A)   Be capable of accommodating a 25-year rainfall intensity without endangering the public safety and health, or causing significant damage to property;
   (B)   Be durable;
   (C)   Be easily maintained;
   (D)   Be safe to persons and vehicles;
   (E)   Retard sedimentation;
   (F)   Retard erosion;
   (G)   Where necessary, or required by the Board, provide retention/detention storage volume sufficient to accommodate a 25-year storm; and
   (H)   Where necessary, or required by the Board, provide retention/detention outlets designed to allow for no increase in runoff rate.
(1991 Code, § 134.28)