THIS IS AN ADMINISTRATIVE ORDER PURSUANT TO CERCLA SEC 106 ISSUED TO THE LAHONTAN REGIONAL WATER QUALITY BOARD. THE ORDER REQUIRES THE BOARD TO TREAT ACID MINE DRAINAGE IN STORAGE PONDS ON SITE AND CONDUCT OTHER SITE MAINTENANCE AND MONITORING WORK. ACID MINE DRAINAGE FROM THE PONDS, IF LEFT UNTREATED, WOULD OVERFLOW DURING SPRING RAINS AND THUS HAZARDOUS SUBSTANCES IN THE STORAGE PONDS WOULD MOVE INTO LEVAITHAN AND BRYANT CREEKS.