402 – Declaration of Policy.

§  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.