A. “Boat” means and includes any vessel or barge used to transport passengers or freight over the water, including pleasure or work craft, canoes, rowboats and motor or sailboats.

B. “Houseboat” means and includes a building constructed upon a float with or without motive power, used wholly or in part for human habitation.

C. “Motorboat” means and includes any boat or vessel propelled by electric motor, internal combustion or steam engines without regard to whether such motor or engine is attached or mounted inboard or outboard.

D. “Polluting material” means and includes any organic substance or chemical compound which has been determined by the Washington State Pollution Control Commission or the Washington State Health Board or a health official designated by the city manager, to be deleterious to the public health.

E. “Seaplane” means and includes any plane equipped with pontoons or hull for operation upon water when the plane is taxiing on the water as defined in subsection G of this section.

F. “Sewer mains” or “sewer pipes” means and includes any sewer main or pipe being a part of a system of mains and treatment plants duly installed and operated by a sewer district under the laws of the state or by the city.

G. “Water,” “stream” or “lake” means and includes the water of any seasonal or continuously flowing stream or any lake or portion of a lake lying partially or completely within or adjacent to the boundaries of the city. (1961 code § 13.04.010.)