The director:
(1) Shall take all actions not inconsistent with this chapter as are necessary and feasible to enable the department to assume and continue primacy over hazardous waste management, pursuant to RCRA;
(2) May conduct and publish studies of hazardous waste management in this state;
(3) Shall develop, publish, and revise as necessary a plan for the safe and effective management of hazardous wastes within this state. Such a plan may identify those locations in the state which are not suitable for the establishment of hazardous waste treatment or disposal facilities or sites;
(4) Shall exercise all powers and discharge all duties expressed in or implied from the other sections of this chapter.