In this article, unless the context otherwise requires:
1. "Community water system" means a public water system that serves at least fifteen service connections used by year-round residents of the area served by the system or that regularly serves at least twenty-five year-round residents of the area served by the system. A person is a year-round resident of the area served by a system if the person’s primary residence is served water by that system.
2. "Large community water system" means a community water system that serves water to more than one thousand eight hundred fifty persons.
3. "Public water system" means an entity that distributes or sells water and that qualifies as a public water system under section 49-352, subsection B.
4. "Small community water system" means a community water system that does not qualify as a large community water system.