PCB 73-482

		PCB 73-482 01/17/74 Order ILLINOIS POWER COMPANY v. ILLINOIS ENVIRONMENTAL PROTECTION AGENCY
		PCB 73-482 01/31/74 Order. ILLINOIS POWER COMPANY v. ENVIRONMENTAL PROTECTION AGENCY
		PCB 73-482 02/28/74 Opinion and Order ILLINOIS POWER COMPANY v. ENVIRONMENTAL PROTECTION AGENCY