02/26/85: NATURE OF CASE: DICKERSON VS. EPA IS AN ACTION FOR A TRO & PERMANENT INJUNCTION AGAINST EPA TO ENJOIN IT FROM PROCEEDING WITH AN IMMEDIATE REMOVAL AT AMTRECO. U.S. VS. DICKERSON IS AN ACTION FOR INJUNCTIVE & DECLARATORY RE- LIEF SEEKING ACCESS TO THE AMTRECO SITE FOR PURPOSES OF CARRYING OUT AN IMMEDIATE REMOVAL. ISSUES OF PRECEDENTIAL SIGNIFICANCE: PRE-ENFORCEMENT RE- VIEW OF EPA'S DECISION TO CARRY OUT AN IMMEDIATE REMOVAL UN- DER SECTION 104 OF CERCLA; CONSTITUTIONAL & STATUTORY CHALLENGES TO EPA'S AUTHORITY.