Conn. Gen. Stat. § 22a-13

The council is empowered to receive and investigate citizen complaints alleging violation of any statute or regulation in respect to environmental quality. When the chairman of the council determines that matters alleged in a citizen complaint cannot be resolved by referring the complaint to another appropriate regulatory agency, he shall so inform the Commissioner of Energy and Environmental Protection who may hold a hearing concerning such complaint, having given appropriate written notice and opportunity to be heard to all interested parties, and shall proceed thereon in accordance with the provisions of this title or the applicable provisions of those chapters or sections referred to in section 22a-6 .