(a) After the public hearing referred to in § 2304 of this title shall have been closed, the County Council shall, by resolution, determine whether or not it is in the public interest to establish the district and, if it deems it to be in the public interest to establish the district, the County Council shall, by such resolution, determine what shall be the boundaries of the district. Such boundaries may be those set forth in the petition or may be boundaries which will include in the district the property and property owners, and only the property and property owners, that will be benefited by the establishment of the district and the construction of sewage disposal facilities therein.
(b) After establishing the boundaries of the district, the County Council shall also cause to be prepared by the Department of Public Works or consulting engineers, an estimate of the cost of proposed immediate construction and also an approximate estimate of the assessment per front foot and the amount to be included in the assessment necessary to take care of interest, amortization and maintenance costs. The construction cost estimates and assessment estimates shall be advertised in the same manner as provided in § 2304 of this title for advertising the public hearing.