*256.437.  Definitions. — As used in sections 256.435 to 256.445, the following terms mean:

  (1)  "Director", the director of the department of natural resources;

  (2)  "Flood control storage", storage space in reservoirs to hold flood waters;

  (3)  "Plan", a preliminary engineering report describing the water resource project;

  (4)  "Public water supply", a water supply for agricultural, municipal, industrial or domestic use;

  (5)  "Sponsor", any political subdivision of the state or any public wholesale water supply district;

  (6)  "Water resource project", a project containing planning, design, construction, or renovation of:

  (a)  Public water supply;

  (b)  Flood control storage; or

  (c)  Treatment or transmission facilities for public water supply.