105.06    OPEN DUMPING PROHIBITED.
   No person shall dump or deposit or permit the dumping or depositing of any solid waste on the surface of the ground or into a body or stream of water at any place other than a sanitary disposal project approved by the Director of the State Department of Natural Resources, unless a special permit to dump or deposit solid waste on land owned or leased by such person has been obtained from the Director of the State Department of Natural Resources.  However, this section does not prohibit the use of dirt, stone, brick, or similar inorganic material for fill, landscaping, excavation, or grading at places other than a sanitary disposal project. 
(Code of Iowa, Sec. 455B.307 and IAC, 567-100.2)