THIS IS A UNILATERAL ADMINISTRATIVE ORDER PURSUANT TO RCRA SECTION 7003 ISSUED TO MOJAVE COUNTY IN ARIZONA. THE VIOLA- TION INVOLVES DISCHARGE OF SOLID WASTES TO THE ENVIRONMENT PRESENTING IMMINENT AND SUBSTANTIAL ENDANGERMENT TO HEALTH AND/OR THE ENVIRONMENT. THE ORDER DIRECTS MOJAVE COUNTY TO PARTICIPATE IN PERFORMANCE OF REMEDIATION WORK RELATED TO A TIRE FIRE ON THE GILA RIVER INDIAN COMMUNITY RESERVATION. (THIS ORDER IS RELATED TO THE ORDER IN CASE 09-1999-0006.)