9-2-8: GENERAL METHODOLOGY FOR CALCULATION:
   A.   Report: The amount of the impact fee shall be calculated using the methodology contained in the "report".
   B.   Proportionate Share: A development impact fee shall not exceed a proportionate share of the cost of system improvements determined in accordance with Idaho Code section 67-8207. Development impact fees shall be based on actual system improvement costs or reasonable estimates of such costs.
   C.   Developers: A developer shall have the right to elect to pay a project's proportionate share of system improvement costs by payment of development impact fees according to the fee schedule as full and complete payment of the development project's proportionate share of system improvement costs, except as provided in Idaho Code section 67-8214(3). The schedule of development impact fees for various land users per unit of development shall be as set forth in the "report".
   D.   Proportionate Share Determination:
      1.   All development impact fees shall be based on a reasonable and fair formula or method under which the development impact fee imposed does not exceed a proportionate share of the costs incurred or to be incurred by the city in the provision of system improvements to serve the new development. The proportionate share is the cost attributable to the new development after the city considers the following:
         a.   Any appropriate credit, offset, or contribution of money, dedication of land, or construction of system improvements;
         b.   Payments reasonably anticipated to be made by or as a result of a new development in the form of user fees, debt service payments, or taxes which are dedicated for system improvements for which development impact fees would otherwise be imposed; and
         c.   All other available sources of funding such system improvements.
      2.   In determining the proportionate share of the cost of system improvements to be paid by the developer, the following factors shall be considered by the city:
         a.   The cost of existing system improvements within the service area or areas;
         b.   The means by which existing system improvements have been financed;
         c.   The extent to which the new development will contribute to the cost of system improvements through taxation, assessments, or developer or landowner contributions, or has previously contributed to the cost of system improvements through developer or landowner contributions.
         d.   The extent to which the new development is required to contribute to the cost of existing system improvements in the future.
         e.   The extent to which the new development should be credited for providing system improvements, without charge to other properties within the service area or areas;
         f.   Extraordinary costs, if any, incurred in serving the new development;
         g.   The time and price differential inherent in a fair comparison of fees paid at different times; and
         h.   The availability of other sources of funding system improvements including, but not limited to, user charges, general tax levies, intergovernmental transfers, and special taxation. The city shall develop a plan for alternative sources of revenue, which shall include, but not necessarily be limited to, plans generated during the city's annual budget process, lobbying efforts, tax increment financing, implementation of user fees and various forms of utilities. (Ord. 412, 3-14-2006)