Ark. Code Ann. § 14-120-318

For the purpose of enabling any levee district, drainage district, or levee and drainage district to carry out the purposes for which the district was originally created and those assumed by it under the terms of subchapter 2 of this chapter and acts amendatory thereto, the board of directors of the district is authorized and empowered, and it is made their duty, to assess and levy annually a tax upon the increased value or betterment estimated to accrue, and which will accrue, to all lands, town lots, suburban lots, rural lots, industrial tracts, blocks, railroads, tramroads, telegraph, telephone, and electric power lines, and underground cables, pipelines, and all other real property and interests in real property lying within the boundaries of the district by reasons of the construction, perpetual maintenance, and operation of the levees and other flood control and drainage works, the operation and maintenance of which is the duty of the district, provided the tax to be so annually levied on such increased value or betterment shall not exceed five percent (5%) of the increased value, or betterment, as determined and fixed under the provisions of §§ 14-120-315 and 14-120-316 nor twenty-five cents (25¢) per acre on rural lands.