(a) The county governments of Kent County, of New Castle County and of Sussex County may appropriate annually the sum of $750 to each fire company in their respective counties outside the limits of the City of Wilmington furnishing an ambulance for the benefit of the residents thereof. The sum appropriated shall be used for the maintenance of ambulance service.
(b) Where an area of real property owned by a county is bounded by a wall, fence or other structure which has gates or other lockable entrances, the county shall notify those public agencies within the county which provide ambulance, fire and police services of the location of such gates and entrances. A key to each such enclosed area shall be provided by the county to the ambulance service, fire company and police department which are closest to the enclosed area. For purposes of this subsection, the words “real property” shall include all unimproved land only and shall not include buildings.