THIS IS AN ADMINISTRATIVE ORDER UNDER RCRA 7003 ISSUED AGAINST CLARK COUNTY NEVADA, THE CURRENT OWNER OF THE SUNRISE MOUNTAIN LANDFILL SOLID WASTE DISPOSAL SITE. THE ORDER IS ALSO DIRECTED AGAINST THE CURRENT AND PRIOR OPERATORS OF THE SITE. THE ORDER DIRECTS THE RESPONDENTS TO ADDRESS THE HEALTH THREATS PRESENTED BY THE LANDFILL IN ITS CURRENT CONDITION. AS IT CURRENTLY EXISTS, THE LANDFILL POSES IMMINENT AND SUBSTANTIAL ENDANGERMENT TO HUMAN HEALTH AND THE ENVIRONMENT. THE IMMEDIATE PROBLEM STEMS FROM PREVIOUS INADEQUATE CLOSURE AND MAINTENANCE OF THE SITE. THE POOR CONDITION OF THE SITE WAS EXACERBATED BY A SERIES OF RAIN STORMS IN SEPTEMBER 1998 CAUSING EXCESSIVE RUNOFF AND THE TRANSPORT OF POLUTANTS OFF SITE BY THE RUNOFF.