716B.1  Definitions.
  As used in this chapter, unless the context otherwise requires:
  1.  “Department” means the department of natural resources.
  2.  “Disposal” or “dispose” means disposal as defined in section 455B.411, subsection 1.
  3.  “Hazardous waste” means a hazardous waste as defined in section 455B.411, subsection 3, or a hazardous substance as defined in 42 U.S.C. §  9601, or a hazardous substance as designated by regulations adopted by the administrator of the United States environmental protection agency pursuant to 42 U.S.C. §  9602.
  4.  “Person” means an agency of the state or federal government, a municipality, governmental subdivision, interstate body, public or private corporation, individual, partnership, or other entity, and includes an officer, or governing or managing body of a municipality, governmental subdivision, interstate body, or public or private corporation.
  5.  “Storage” or “store” means the containment of a hazardous waste, either on a temporary basis or for a period of years, in a manner that does not constitute disposal of the hazardous waste.
  6.  “Treatment” or “treat” means a method, technique, or process, including neutralization, designed to change the physical, chemical, or biological character or composition of a hazardous waste so as to neutralize the waste or to render the waste nonhazardous, safer for transport, amenable for recovery, amenable for storage, or to reduce the waste in volume. “Treatment” includes any activity or processing designed to change the physical form or chemical composition of hazardous waste to render the waste nonhazardous.
88 Acts, ch 1080, §3; 2011 Acts, ch 9, §9