If a district has a boundary which is contiguous to the boundary of a city and the district has a contract with that city under which the city is responsible for the operation and maintenance of all facilities of the district, the governing board of the district may, by a resolution adopted by a 4/5 vote of the board, declare the board dissolved and thereafter the governing body of the city shall be ex officio the governing board of the district.
Ca. Health and Saf. Code § 6500