PCB 71-193

		PCB 71-193 / PCB 71-195 / PCB 71-196 / PCB 71-197 / PCB 71-198 09/30/71 Opinion and Order ILLINOIS POWER CO. v. ENVIRONMENTAL PROTECTION AGENCY
		PCB 71-193 11/11/71 Order ILLINOIS POWER CO. v. ENVIRONMENTAL PROTECTION AGENCY