All improvements shall be installed to satisfy the service requirements for the service or drainage area in which the subdivision is located and the improvements shall be of sufficient capacity to handle the expected development of the overall service or drainage area involved.
(A) Extra-size improvements.
(1) Where improvements in excess of the size needed to serve just the proposed subdivision are required, the subdivider shall pay for the total cost of improvements he is required to install to serve his subdivision plus the additional costs which result from the extra size improvement required as determined by the Planning Commission, or its duly authorized representative.
(2) Thus when conditions within the whole drainage area will require an 18-inch sanitary sewer for example, and a 12-inch sewer will adequately serve the subdivision involved, the subdivider shall construct the 18-inch utility.
(B) Off-site extensions. When streets or utilities are not available at the boundary of a proposed subdivision, the Commission, or its duly authorized representative, shall require, as a prerequisite to approval of a preliminary and final plat, assurances that such improvement extensions shall be provided as follows:
(1) Extensions of utilities onto the property involved shall be adequate to serve the total development requirements of the service or drainage area. Utilities leaving the property shall be constructed in such a manner as to make their extension practical for servicing the adjacent areas of the service or drainage area.
(2) If the Planning Commission, or its duly authorized representative, finds that the extensions across undeveloped areas would not be warranted as a special assessment to the intervening properties or as a governmental expense until some future time, the developer shall be required, if he wishes to proceed with the development, to obtain necessary easements or rights-of-way and construct and pay for such extensions. Such improvements shall be available for connections by subdividers of adjoining land and the subdivider may contract with adjacent property owners and/or subdividers of adjacent land for reimbursement of the oversize and/or off-site improvements constructed.
(Ord. 1971-2, passed 4-6-71)