For the purposes of this chapter, unless the context otherwise requires:

1. 1. “Council” means the water resources coordinating council created in section 466B.3.
2. 2. “Department” means the department of natural resources.

3. 3. “Political subdivision” means any of the following:

   1. a. A city.
   2. b. A county.
   3. c. A soil and water conservation district described in section 161A.5.
   4. d. A benefited recreational lake district or a water quality district or a combined district incorporated as a public entity and organized pursuant to chapter 357E.
4. 4. “Regional watershed” means a watershed of hydrologic unit code scale 8.
5. 5. “Subwatershed” means a watershed of hydrologic unit code scale 12 or smaller.
6. 6. “Watershed” means a geographic area in which surface water is drained by rivers, streams, or other bodies of water.

Subsection 3 amended

2008 Acts, ch 1034, §2; 2013 Acts, ch 132, §57; 2016 Acts, ch 1020, §1