The Board may from time to time call public hearings to ascertain whether the public necessity, health, safety or welfare requires the removal of poles, overhead wires and associated overhead structures within designated areas of the unincorporated area of the County and the underground installation of wires and facilities for supplying electric, communication or similar or associated services. The Clerk shall notify all affected property owners (as shown on the last equalized assessment roll) and utilities concerns by mail of the time and place of such hearings at least ten (10) days prior to the date thereof. Each such hearing shall be open to the public and may be continued from time to time. At each such hearing all persons interested shall be given an opportunity to be heard. The decision of the Board shall be final and conclusive. Prior to holding such public hearing, the Director shall consult all affected utilities and shall prepare a report for submission at such hearing containing, among other information, the extent of such utilities participation and estimates of the total costs of the County and the affected property owners. Such report shall also contain an estimate of the time required to complete such underground installation and removal of overhead facilities. (Ord. 652, § 2, 11/26/1968)