AUTHORITY: Implementing Sections 21, 22, 22.01 and 22.9, and authorized by Section 27 of the Environmental Protection Act [415 ILCS 5/21, 22, 22.01, 22.9, 27].
SOURCE: Adopted in R89-13A at 14 Ill. Reg. 14043, effective August 15, 1990; amended in R98-29 at 23 Ill. Reg. 6875, effective July 1, 1999; amended in R06-20(A) at 34 Ill. Reg. 3310, effective February 25, 2010; amended in R06-20(B) at 34 Ill. Reg. 17390, effective October 29, 2010.