The governing body of any municipality availing itself of the provisions of this article shall adopt an ordinance describing in a general way the contemplated project. If it is intended to include in the combined system any existing waterworks system or any existing sewerage system, or both, or if applicable, any existing stormwater system, or any of them, or all of them, the ordinance shall provide that it or they be so included in the combined system and shall describe in a general way such existing waterworks or sewerage system or both, or, if applicable, any existing stormwater system, or any of them, or all of them, to be included in the combined system. The ordinance shall state the means provided for refunding any obligations unpaid and outstanding payable solely from the revenues of any such waterworks or sewerage system, or both, or if applicable, any existing stormwater system, or any of them, or all of them. The ordinance shall determine the period of usefulness of the contemplated project.

If it is intended to acquire, construct, establish and equip a combined system or any part thereof, or to construct extensions, additions, betterments and improvements to either the waterworks system or the sewerage system of the combined system, or both, or if applicable, any existing stormwater system, or any of them, or all of them, the ordinance shall describe in a general way the works or property or system to be acquired, constructed, established or equipped or the extensions, additions, betterments and improvements to be constructed.

The ordinance shall fix the amount of revenue bonds proposed to be issued, the interest rate or rates, and any other details in connection with the bonds considered advisable. The ordinance may state that the bonds, or such ones thereof as may be specified, shall, to the extent and in the manner prescribed, be subordinated and be junior in standing, with respect to principal and interest and the security thereof, to such other bonds as are designated in the ordinance.