The purpose of this chapter is to ensure that funds are available for capital costs associated with existing water and sewage treatment capacity, which will be needed by the users of new water and sewer taps, as well as the maintenance and repair of the existing water and sewer lines, and to compensate the city for the capital costs associated with the trunk water and sewer system and associated rights of way, which will be needed by the users of new water and sewer taps, and to raise the funds necessary to expand water and sewage treatment capacity and expand the trunk water and sewer system which will be made necessary by new construction or improvements, which will require and use the city public water and sewer system. (1993 Code § 25-32)