AN UNILATERAL ADMINISTRATIVE ORDER WAS ISSUED ON AUGUST 31, 1989 AGAINST THE RESPONDENTS UNDER SECTION 104(A) AND 106(A) OF CERCLA TO PERFORM DRUM RECOVAL ACTION AT THE LOWRY LANDFILL SITE. ON SEPTEMBER 8, 1989, THIS ORDER WAS AMENDED, RESTATED, AND ISSUED TO DIRECT THE RESPONDENTS TO PERFORM PHASE I OF THE DRUM REMOVAL ACTION. ALTHOUGH THE AMENDED ORDER ONLY REQUIRES THE RESPOND- ENTS TO PERFORM PHASE I OF THE DRUM REMOVAL ACTION, IT IS EPA'S EXPECTATION THAT THE RESPONENTS WILL PARTICIPATE IN PERFORMANCE OF PHASE II.