(a) Define the properties in the area to be benefited by each improvement, with each improvement being designated as a project;
(b) Fix the amount or percentage of the charge to be levied upon the property benefited;
(c) Designate the minimum and maximum number of years between the date of issuance of the bonds and the maturity of those bonds;
(d) Delineate the method of determining the amount of special assessments to be levied on each lot or parcel of land in the benefited area; and
(e) Designate the minimum and maximum number of equal approximately equal annual installments that the board of commissioners may later allow for the payment of assessments with interest on those assessments.