AUTHORITY: Implementing and authorized by Section 58.13 of the Environmental Protection Act [415 ILCS 5/58.13].
SOURCE: Adopted at 23 Ill. Reg. 467, effective December 23, 1998; amended at 27 Ill. Reg. 14604, effective August 28, 2003; amended at 31 Ill. Reg. 5774, effective March 30, 2007.