(a)  Existing stormwater systems or any part thereof that convey offsite or a combination of onsite and offsite stormwater runoff shall not be altered or relocated except upon the presentation of data, certified by a licensed engineer that the stormwater carrying capacity of such a modified system is equal to or exceeds the existing capacity. It is not the intent of this section to prevent normal maintenance activities from being performed.
 
(Ord. No. 06-17, 7/18/06)