The prescribed water quality volume required in the sizing of a structural stormwater practice shall be [calculated as 1.2 x total watershed area x runoff coefficient (Rv), where Rv = 0.05 + 0.009 (I%) and I% = percent of impervious area] (default option - optimal) or [0.50 inches x the total impervious area of the drainage area and 1.0 inches x the total impervious area of the drainage area in critical areas.
(Ord. 2008-06, passed 4-14-08) Penalty, see § 52.999