This chapter shall apply to each public water system, unless the public water system meets all of the following conditions:
(A) Consists only of distribution and storage facilities (and does not have any collection and treatment facilities).
(B) Obtains all of its water from, but is not owned or operated by, a public water system to which this chapter applies.
(C) Does not sell water to any person as determined by the director.
(D) Is not a carrier which conveys passengers in interstate commerce.