Sale, lease or management of landfill. Public hearing prior to entering contract, §12-8-24.2. Metropolitan North Georgia water planning district. Powers as to, §§12-5-574, 12-5-577. North Georgia Mountains authority. Approval of indebtedness by Georgia state financing and investment commission, §12-3-300. Oconee river greenway authority. General powers, §12-3-404. Parks and recreation. Public-use areas. Authority of state to make grants, leases, contracts, etc., §12-3-5. Sapelo Island Heritage authority. Power to contract, §12-3-443. Solid waste. Sale, lease or management of landfill or solid waste disposal facility. Public hearing prior to entering contract, §12-8-24.2. CONTRACTS —Cont’d Solid waste —Cont’d Surcharge. Owners or operators of facilities to charge waste surcharge. Rate per ton, retention of percentage by owners or operators. Exempt contracts, §12-6-24. Stone Mountain Memorial Association. Obligations of state, etc., under lease contracts with association, §12-3-195. Revenue bonds.