Conn. Gen. Stat. § 7-490

(b) The facility charges fixed, charged and collected by a municipality with respect to any such development property shall comply with the terms of any lease or other agreement of the municipality with regard to such development property and, subject to the provisions of any contract with noteholders or bondholders and any such lease or other agreement, the facility charges fixed, charged and collected by the municipality may be increased or decreased by the amount of increase or decrease of the expenses of the municipality attributable to the development property for which facility charges are made. Such expenses may include, but not be limited to, operating expenses and expenses of maintenance, insurance, improvements, replacements, reconstruction and any other payments, amounts necessary to pay the principal of and interest or redemption price on any bonds or notes, and amounts necessary to maintain such reserves as may be required by the terms of any lease or other agreement of the municipality or as may be deemed necessary or convenient and desirable by the municipality.