All assessments authorized by sections 48-2708 and 48-2709 shall be apportioned against the several subdivisions within a district organized subject to the provisions of this article according to the unit system of benefits derived.
Apportionment of assessments levied among subdivisions on unit basis
A.R.S. § 48-2736 — under Unit System of Taxation.
A.R.S. § 48-2736