AUTHORITY: Implementing and authorized by Sections 13(a)(4) and 13.5 of the Environmental Protection Act [415 ILCS 5/13(a)(4) and 13.5].
SOURCE: Adopted at 6 Ill. Reg. 1630, effective January 27, 1982; amended at 9 Ill. Reg. 2663, effective February 15, 1985; amended at 10 Ill. Reg. 18774, effective November 1, 1986; recodified at 31 Ill. Reg. 10532; recodified at 42 Ill. Reg. 7978; amended at 43 Ill. Reg. 5203, effective July 1, 2019.