466B.2  Definitions.
  For the purposes of this chapter, unless the context otherwise requires:
  1.  “Council” means the water resources coordinating council created in section 466B.3.
  2.  “Department” means the department of natural resources.
  3.  “Political subdivision” means a city, county, or soil and water conservation district.
  4.  “Regional watershed” means a watershed of hydrologic unit code scale 8.
  5.  “Subwatershed” means a watershed of hydrologic unit code scale 12 or smaller.
  6.  “Watershed” means a geographic area in which surface water is drained by rivers, streams, or other bodies of water.
2008 Acts, ch 1034, §2; 2013 Acts, ch 132, §57