PCB 72-216

		PCB 72-216 07/25/72 Opinion ENVIRONMENTAL PROTECTION AGENCY v. IOWA-ILLINOIS GAS & ELECTRIC CO.
		PCB 72-216 08/22/72 Supplemental Order and Opinion ENVIRONMENTAL PROTECTION AGENCY v. IOWA-ILLINOIS GAS & ELECTRIC CO.
		PCB 72-216 09/26/72 Opinion and Order ENVIRONMENTAL PROTECTION AGENCY v. IOWA-ILLINOIS GAS & ELECTRIC CO.