THIS ADMINISTRATIVE ORDER ON CONSENT REQUIRES SEVEN PAST AND PRESENT ENTITIES THAT OWNED OR OPERATED THE ST. CROIX ALUMINA FACILITY AND AN ADJACENT OIL REFINERY TO SHARE RESPONSIBLITY FOR CLEANING UP AN ESTIMATED 900,000 TO 2 MILLION GALLONS OF PETROLEUM (OIL) PRESENT IN THE GROUND- WATER UNDERLYUING THE ST. CROIX ALUMINA FACILITY. *