1. Connection Fee; Interest Rate. The connection fee shall be in an amount equal to the maximum acre area of contiguous property, or fraction thereof, within the connection fee district under such ownership which can be lawfully served through such proposed connection, multiplied by the per-acre connection fee established in the ordinance to establish a connection fee district for that district. Provided, however, connection fees will be adjusted upward for higher volume users. Said ordinance may provide for a graduated connection fee, with annual interest adjustments, such that property owners who connect in later years pay interest on the connection fee for their property. Pursuant to Chapter 74A and Section 384.60(3) of the Code of Iowa, the rate of interest applicable to the connection fee established in each connection fee district shall not exceed the rate of interest applicable to special assessments in effect on the date that the connection fee was established for that district by enactment of an ordinance to establish a connection fee district.
2. Additional Fee. The sewer connection fee or water connection fee required by this chapter is in addition to, and not in lieu of, any other fees for connection required under the plumbing code or other provisions of this Code of Ordinances.