(a) Within one hundred eighty days of receipt of an application for a permit, the commissioner shall determine if there is any additional information that he deems necessary to carry out the purposes of sections 22a-365 to 22a-378, inclusive. The applicant shall provide such information to the commissioner upon request.

(b) If the applicant does not furnish the requested information, the commissioner shall publish notice of his tentative determination on the application in accordance with § 22a-6h and shall hold or waive a public hearing in accordance with the provisions of subsection (f) of this section.

(c) If the commissioner finds that an application is complete, he shall notify the applicant by electronic means or certified mail, return receipt requested. The commissioner shall also notify the applicant of the time, date and location of any public hearing to be held on the application.

(d) Upon notifying the applicant in accordance with subsection (c) of this section that the application is complete, the commissioner shall immediately provide, by electronic means, notice of the application and a concise description of the proposed diversion to the Governor, the Attorney General, the speaker of the House of Representatives, the president pro tempore of the Senate, the Secretary of the Office of Policy and Management, the Commissioners of Public Health and Economic and Community Development, the chairperson of the Public Utilities Regulatory Authority, the chief executive officer and chairmen of the conservation commission and wetlands agency of the municipality or municipalities in which the proposed diversion will take place or have effect, and any person who has requested notice of such activities.

(e) As used in this section, “municipality” means a city, town or borough of the state.

(f) The commissioner shall hold a public hearing before approving or denying an application, except that, when the commissioner determines that the proposed diversion (1) is necessary, (2) will not significantly affect long-range water resource management or the environment, and (3) will not impair proper management and use of the water resources of the state, he may waive the requirement for a hearing after publishing notice of his tentative decision regarding the application and of his intent to waive the requirement for a hearing in a newspaper having general circulation in the area where the proposed diversion will take place or have effect; provided the commissioner shall hold a hearing upon receipt, within thirty days after such notice is published or mailed, of a petition signed by at least twenty-five persons. If a hearing is to be held, the commissioner, at the applicant’s expense, shall (A) cause notice of the time, date and location of the commencement of the hearing, a concise description of the proposed diversion, and the commissioner’s tentative determination regarding the application to be published not less than thirty days prior to the commencement of the hearing in a newspaper having a general circulation in the area where the proposed diversion will take place or have effect, and (B) provide the same notice to the officials listed in subsection (d) of this section not less than thirty days prior to the commencement of the hearing.