(1) When a landfill cell is first licensed, an instrument that imposes a restrictive covenant upon the land involved shall be executed by all of the owners of the land and the department. If the land is owned by this state, the state administrative board shall execute the covenant on behalf of this state. The department or a local health officer shall file the instrument imposing the restrictive covenant for record in the office of the register of deeds of the county, or counties, in which the land is located. The covenant shall state that the land described in the covenant will be used as a landfill and that neither the property owners, their servants, agents, or employees, nor any of their heirs, successors, lessees, or assigns shall, without authorization from the department, engage in filling, grading, excavating, drilling, or mining on the property during the first 50 years following approval by the department of the landfill’s closure certification under section 11523a. In giving authorization, the department shall consider the original design, type of operation, material deposited, and the stage of decomposition of the fill. The department may grant an exemption from this section if the land involved is federally owned or if agreements existing between the landowner and the licensee on January 11, 1979 are not renegotiable.

  (2) Part 115 does not prohibit the department from conveying, leasing, or permitting the use of state land for a disposal area or a resource recovery facility as provided by applicable state law.

  (3) When a disposal area that is a coal ash impoundment is first licensed under this part, an instrument that imposes a restrictive covenant upon the land involved shall be executed by all of the owners of the land and the department. If the land is owned by this state, the state administrative board shall execute the covenant on behalf of this state. The department or a local health officer shall file the instrument imposing the restrictive covenant for record in the office of the register of deeds of the county, or counties, the land is located. The covenant shall state that the land described in the covenant will be used as a coal ash impoundment and that neither the property owners, their servants, agents, or employees, nor any of their heirs, successors, lessees, or assigns shall, without authorization from the department, engage in filling, grading, excavating, drilling, or mining on the property during the first 50 years following completion of the impoundment. In giving authorization, the department shall consider the original design, type of operation, material deposited, and any removal of the materials as part of the closure of the impoundment.

  (4) An industrial waste landfill may accept industrial waste of different types and from different generators, but shall not accept hazardous waste generated by conditionally exempt small quantity generators.