No excavation, grading, filling or retaining wall construction shall be permitted which would interfere with the natural drainage of the site or the general area surrounding the site or interfere with the preservation of wetlands on, adjacent to, abutting or affected by the site. All existing watercourses and wetlands shall be preserved, except that wetlands may be altered and mitigated in accordance with requirements of all statutes, ordinances or regulations of any federal or state agency or subdivision thereof, that such watercourses may be relocated or piped, provided that there shall not be a significant increase in the rate of stormwater runoff from the site and there shall not thereby be created any interference with the riparian and drainage rights or easements of other property owners, and provided further that no drainage shall be made onto public land or connected with public facilities without the express approval of the City, except with respect to land controlled by the Board of Education, in which event such approval shall be obtained from the Board.
(Ord. 1990-44. Passed 8-8-90.)