THIS ADMINISTRATIVE ORDER ON CONSENT IS ENTERED INTO VOLUNTARILY BY EPA AND THE NIELSON CONSTRUCTION CO AND PROVIDES FOR THE PERFORMANCE OF A REMOVAL ACTION BY THE RESPONDENT AND THE REIMBURSEMENT OF RESPONSE COSTS INCURRED BY THE US IN CONNECTION WITH THE HUNTINGTON UTAH DRUMS SITE. THE ORDER IS REQUIRED TO ABATE AN IMMINENT AND SUBSTANTIAL ENDANGERMENT TO THE PUBLIC HEALTH, WELFARE OR THE ENVIRONMENT.