PCB 72-211

		PCB 72-211 08/15/72 Opinion and Order ELGIN SANITARY DISTRICT v. ENVIRONMENTAL PROTECTION AGENCY
		PCB 72-211 Order 06/27/73 ELGIN SANITARY DISTRICT v. ENVIRONMENTAL PROTECTION AGENCY
		PCB 73-211 08/28/75 Order INTERNATIONAL HARVESTER COMPANY v. ENVIRONMENTAL PROTECTION AGENCY