The Harbormaster may refuse the use of mooring facilities to aircraft, boathouses, floats, houseboats, scows, rafts, pile drivers, and other cumbersome floating structures, or to any boat, vessel or floating structure, that is or may become or create a fire hazard, or that otherwise may become a menace or nuisance to the safety and welfare of other vessels, their occupants or to other property, or to any vessel, owner or operator that is otherwise in violation of any provisions of this title.