Constituting the Twenty-Fifth Supplemental Ordinance to the Restated General Water and Wastewater Revenue Bond Ordinance of 1989, as supplemented; authorizing the Bond Committee to issue and sell one or more series or subseries of tax-exempt or taxable water and wastewater revenue bonds and revenue refunding bonds, some or all of which may be used for the implementation of a revolving commercial paper program for the System; authorizing agreements to provide credit enhancement or payment or liquidity sources (or any combination of the foregoing) for such Obligations; providing that such Obliga