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PCB 75-388 01/20/77 Order
ENVIRONMENTAL PROTECTION AGENCY v. CLARK OIL AND REFINING CORPORATION
PCB 75-388 03/03/77 Order
ENVIRONMENTAL PROTECTION AGENCY v. CLARK OIL AND REFINING CORPORATION
PCB 75-388 12/16/76 Order
ENVIRONMENTAL PROTECTION AGENCY v. CLARK OIL AND REFINING CORPORATION