PCB 86-174

		PCB 86-174 02/25/88 Opinion and Order IBP, INC. v. ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
		PCB 86-174 06/22/89 Order IBP, INC. v. ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
		PCB 86-174 10/15/87 Order IBP, Inc. v. ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
		PCB 86-174 11/29/88 Order IBP, INC. v. ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
		PCB 86-174 12/05/86 Order IBP, INC. v. ILLINOIS ENVIRONMENTAL PROTECTION AGENCY.