Tax.

The board of supervisors shall have authority to levy a tax on the lands in said drainage district established in this state to provide funds from which to pay for the improvement referred to in section 468.146, subsection 2 , should such levy be necessary. [C31, 35, §7578-c1; C39, § 7578.1; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §455.158 ] 89 Acts, ch 126, §2 CS89, §468.147