Nothing in this chapter shall prevent an individual or firm from disposing of solid waste from his own household or business upon his own land, provided such wastes are not hazardous as defined in Section 17-17-3(i) and provided such household or business is located and situated in the State of Mississippi
Provided, however, this exemption shall not operate to prevent the conduct of any waste disposal site investigation or inventory required by applicable state or federal law, rule or regulation, and further shall not operate to exclude from the regulatory provisions of this chapter any solid waste determined by the department to have characteristics that constitute an endangerment to the environment or the public health, safety or welfare, or any site used for the disposal of such solid waste.