PCB 71-381

		PCB 71-381 08/08/72 Opinion and Order ENVIRONMENTAL PROTECTION AGENCY v. RAYMOND A, PETERSEN AND PETERSEN SAND and GRAVEL, INC., an Illinois Corporation
		PCB 71-381 08/23/73 Opinion and Order ENVIRONMENTAL PROTECTION AGENCY v. RAYMOND A. PETERSEN and PETERSEN SAND & GRAVEL, INC.,
		PCB 71-381 10/11/73 Order ENVIRONMENTAL PROTECTION AGENCY v. RAYMOND A. PETERSEN and PETERSEN SAND & GRAVEL, INC.,