In the event that a division of land is traversed by a major watercourse, channel, stream, swale or creek, the city council may require that an adequate right-of-way be dedicated for storm drainage purposes. In the event that the natural watercourse does not lie entirely within such dedication, the subdivider may either construct an adequate channel within such dedication or delineate the course of said watercourse upon the final tract map or parcel map.
(Ord. 537 § 2 (part), 1985)