(2) If no additional impervious surface is added, a commercial retrofit is exempt from the storm water management standards.
(B) For purposes of this section,
ADDITIONAL IMPERVIOUS SURFACE means a net addition to the total impervious surface existing on the development parcel or the extension of impervious surface to a new location.
(Ord. 3020, passed 9-10-2013, § 2.5.7)