AUTHORITY: Implementing Section 9.8 and authorized by Sections 27 and 28 of the Environmental Protection Act [415 ILCS 5/9.8, 27 and 28].
SOURCE: Adopted at 21 Ill. Reg. 15777, effective November 25, 1997; amended at 29 Ill. Reg. 8848, effective June 13, 2005.