(A) For computation of pre-development peak discharge rates, 20% of the existing impervious area of a project site, when present, shall be considered meadow, if the existing impervious area is being altered by the proposed regulated activity.
(B) Post-development discharge rates shall not exceed the pre-development discharge rates for the one-, two-, five-, ten-, 25-, 50- and 100-year 24-hour storms. If it is shown that the peak rates of discharge indicated by the post-development analysis are less than or equal to the peak rates of discharge indicated by the pre-development analysis for one-, two-, five-, ten-, 25-, 50- and 100-year, 24-hour storms, then the requirements of this section have been met. Otherwise, the applicant shall provide additional controls as necessary to satisfy the peak rate of discharge requirement.
(Ord. 2013-2, passed 10-7-2013)