To operate under this chapter, the board of commissioners of the improvement district shall cause to be prepared and filed with the board of county commissioners a property roll. The roll shall contain: (1) A description of all properties benefited and improvements thereon which receive protection and service from the systems of the district with the name of the owner or the reputed owner thereof and his or her address as shown on the tax rolls of the assessor or treasurer of the county wherein the property is located and (2) the determined value of such land and improvements thereon as last assessed and equalized by the assessor of such county or counties. Such assessed and equalized values shall be deemed prima facie to be just, fair, and correct valuations against which annual taxes shall be levied for the operation of the district and the maintenance and expansion of its facilities.
If property outside of the limits of the original district are upon the roll as adopted ultimately, and the original district has outstanding bonds or long-term warrants, the board of county commissioners shall set up separate dollar rate levies for the full retirement thereof.