(a) Any constituent town, city or borough may, by vote passed prior to January first in any year, withdraw from the district, such withdrawal to become effective on the first day of July following, provided such city, town or borough shall have been a member of the district for at least twenty-four months prior to such vote of withdrawal. A city, town or borough on withdrawal shall at once resume such status with respect to the appointment of its director of health, employees and board of health as it held prior to becoming a member of the district as provided in § 19a-244. Employees shall not lose any benefits or civil services status as a result of the withdrawal from the district.

(b) Notwithstanding the provisions of subsection (a) of this section, no withdrawal or termination of participation by any constituent municipality shall affect any pledge, agreement, assignment or mortgage of any income, revenue proceeds or property of a district made for the benefit or security of any borrowing of the district entered into pursuant to subsection (b) of § 19a-243.

(c) Notwithstanding any other provision of the general statutes, no district shall cease to exist until such time as payment or provision for payment of the outstanding balance of borrowings of such district entered into pursuant to subsection (b) of § 19a-243 is made.