As used in this subchapter:
(1) “Commission” means the Arkansas Pollution Control and Ecology Commission;
(2) [Repealed.]
(3) “Long-term improvement project” or “project” means any remediation or reclamation project at closed or abandoned:
(A) Mineral extraction sites;
(B) Solid waste management units as defined pursuant to the Arkansas Hazardous Waste Management Act of 1979, § 8-7-201 et seq.;
(C) Oil and gas extraction sites;
(D) Brownfield sites as defined in Acts 1995, No. 125, or as may be amended; and
(E) Hazardous substance sites listed on the National Priorities List, 42 U.S.C. § 9605, or state priority list, § 8-7-509(f), or as may be amended; and
(4) “Water quality standard” means standards developed through administrative rulemaking by the commission.