§ 402. Declaration of policy. It is hereby declared to be the policy
of this state that any municipality acquiring, constructing,
reconstructing, improving, bettering or extending an undertaking
pursuant to this article shall manage such undertaking in the most
efficient manner consistent with sound economy and public advantage to
the end that the services of the undertaking shall be furnished at the
lowest possible cost. No municipality shall operate such undertaking
primarily as a source of revenue to the municipality, but shall operate
such undertaking for the use and benefit of those served by such
undertaking and for the promotion of the welfare and for the improvement
of the health, safety, comfort and convenience of the inhabitants of the
municipality.