The fees required herein for any project may be reduced in a pro rata amount, at the discretion of the city council and on the recommendation of the director of public works/city engineer if the developer is permitted to construct, at his own expense, on or off-site detention areas to accommodate part or all of the incremental runoff created by the development. (Ord. 1653 NCS §3, 1986; Ord. 1530 NCS §1 (part), 1982.)