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. “Iowa nutrient reduction strategy” means the same as defined in section 455B.171.

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.
   5. e. A rural improvement zone established pursuant to chapter 357H.
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.

2008 Acts, ch 1034, §2; 2013 Acts, ch 132, §57; 2016 Acts, ch 1020, §1; 2018 Acts, ch 1152, §9, 10; 2020 Acts, ch 1063, §250