(g) Under this section, appeals from an assessment of any penalty levied shall be made in a timely manner in accordance with the rules for contested cases under the Alabama Administrative Procedure Act, Section 41-22-12, et seq. Judicial review may be taken in circuit court in accordance with the provisions of the Alabama Administrative Procedure Act, Section 41-22-20, et seq. The foregoing notwithstanding, in cases involving Class IV or Class V violations or permit revocations thereunder, judicial review shall be by trial de novo in circuit court in accordance with the provisions of the Alabama Administrative Procedure Act, Section 41-22-20 (j).