The petition for withdrawal shall be heard at the time and place specified in such notice or the hearing may be adjourned from time to time, not exceeding one month in all, and any person may appear at such hearing and make objections to the withdrawal of such territory or to the proposed boundary lines thereof. Upon final hearing on the petition for withdrawal, the board of commissioners of the district shall make such changes in the proposed boundary lines as it deems to be proper, except that no changes in the boundary lines shall be made by the board of commissioners to include lands not within the boundaries of the territory as described in such petition. In establishing and defining such boundaries the board of commissioners shall exclude any property which is then being furnished with water, sewer, or drainage service by the district or which is included in any distribution or collection system the construction of which is included within any duly established local improvement district or utility local improvement district, and the territory as finally established and defined must be substantial in area and consist of adjoining or contiguous properties. The board of commissioners shall thereupon make and by resolution adopt findings of fact as to the following questions:
(1) Would the withdrawal of such territory be of benefit to such territory?
(2) Would such withdrawal be conducive to the general welfare of the balance of the district?
Such findings shall be entered in the records of the district, together with any recommendations the board of commissioners may by resolution adopt.