The agency and the commissioner on behalf of the agency shall encourage the development and operation of hazardous waste facilities by private enterprise to the extent practicable and consistent with the purposes of sections 115A.01 to 115A.72 and the agency’s hazardous waste management plan adopted pursuant to section 115A.11. In adopting the management plan, and in its actions and decisions under sections 115A.18 to 115A.30 and 115A.32 to 115A.39, the agency and the commissioner on behalf of the agency shall solicit the active participation of private waste management firms and shall so conduct its activities as to encourage private permit applications for facilities needed in the state.