THIS ADMINISTRATIVE ORDER ON CONSENT CONCERNS THE PREPARATION OF, PERFORMANCE OF, AND REIMBURSEMENT FOR ALL COSTS INCURRED BY EPA IN CONNECTION WITH A REMEDIAL INVESTIGATION AND FEASIBILITY STUDY (RI/FS) FOR THE INTERNATIONAL SMELTING AND REFINING SUPERFUND SITE LOCATED ON THE WESTERN SLOPE OF THE OQUIRRH MOUNTAINS IN TOOELE COUNTY, UTAH. RESPONDENT AGREES TO PAY $185,066 AS PAYMENT IN FULL FOR PAST RESPONSE COSTS INCURRED BY THE US IN ITS CONDUCT OF RESPONSE ACTIONS AT THE SITE AS OF 12/31/2000.