No excavation, grading or filling shall be permitted which may interfere with the natural drainage of the real property surrounding the site. All existing watercourses shall be preserved except that such watercourses may be relocated or piped, provided that there will 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 Director of Building, except with respect to land controlled by the Board of Education, in which event such approval shall be obtained from the Board of Education.
(Ord. 1999-02. Passed 1-11-99.)