Unless the context requires otherwise, for the purposes of this subchapter, the following terms have the designated meanings:

Terms Used In Wisconsin Statutes 200.01

   (1)   “Commission” means a metropolitan sewerage district commission.
   (2)   “Department” means the department of natural resources.
   (3)   “District” means a metropolitan sewerage district.
   (4)   “Municipality” means town, village, city or county.