If existing recycling systems are not adequate, boards are to establish at least one (1) recyclable materials collection center or system or combination of the two (2) in each county of the district, unless granted an exemption by the Arkansas Pollution Control and Ecology Commission, as provided in Arkansas Code § 8-6-720(a)(2), and there is a written agreement between the affected counties and board or boards, as set forth in Arkansas Code § 8-6-709.