The Legislature finds that hazardous substances have been treated, stored or disposed of at sites which are inactive or abandoned and that such sites have the potential for deleterious impacts on groundwater, human health or the environment. The Legislature, therefore, declares that it is in the public interest to assure that such sites are identified and that action is taken to provide for the cleanup and rehabilitation of such sites within the State of Alabama. The Legislature intends that funds provided under this chapter be used primarily to clean up and rehabilitate sites not qualified for or unlikely to receive funding under the Federal Comprehensive Environmental Response, Compensation and Liability Act of 1980 (42 U.S.C. §9601 et seq.) but that the funds provided under this chapter may also be used to provide state matching funds for cleanups and for operation and maintenance of sites which have completed cleanup under the Federal Comprehensive Environmental Response, Compensation and Liability Act of 1980.