Imposition of Service Charges; Pledge of Revenues. The Borrower hereby irrevocably covenants and agrees to comply with all of the terms, conditions, and requirements of this Assistance Agreement, in accordance with which the Loan is to be made by the Authority to the Borrower as specified herein, and in the Act. The Borrower hereby further irrevocably covenants and agrees that it already has, or will, to the extent necessary, immediately impose Service Charges upon all Persons to whom or which services are provided by the System; such Service Charges to be no less than as set forth on Exhibit B attached hereto. There are hereby pledged for the payment of the principal of and interest on the Loan, in accordance with the terms and the provisions hereof, the Authorizing Action, and the Act, (i) the Revenues; and (ii) any disbursements made under the Loan in accordance with Section 4.2 hereof until expended by the Borrower for the payment of any Project cost.