THE SITE IS LOCATED IN IRONTON, OHIO, AND IS BORDERED BY THE OHIO RIVER. THE 425-ACRE SITE INCLUDES THE GOLDCAMP DISPOSAL AREA (GDA, OPERABLE UNIT 1), A FORMER COKE PLANT WHICH OPERATED FROM 1920 TO 1982, FIVE LAGOONS WHICH RECEIVED PROCESS WASTEWATER AND HAZARDOUS SOLID WASTE FROM THE COKE PLANT (COKE PLANT/LAGOON AREA, CPLA, OPERABLE UNIT 2), AND A TAR PLANT (OPERABLE UNIT 3). IN APRIL, 1984, AN ADMINISTRATIVE ORDER ON CONSENT (AOC) WAS SIGNED BETWEEN ALLIEDSIGNAL (NOW KNOWN AS HONEYWELL), EPA, AND THE OHIO ENVIRONMENTAL PROTECTION AGENCY (OEPA) TO INVESTIGATE AND DETERMINE THE SITE REMEDY FOR GDA, CPLA, AND THE TAR PLANT. THE INVESTIGATION SHOWED THAT THE 4-ACRE AND 45-FOOT DEPTH GDA AND ITS GROUNDWATER CONTAINED TAR PLANT RESIDUE WASTE (COAL TARS, SEMI-VOLATILE ORGANICS, VOLATILE ORGANICS, AND METALS). AN INDUSTRIAL FACILITY NEAR GDA WAS PROVIDED WITH AN ALTERNATIVE DRINKING WATER SUPPLY . IN SEPTEMBER, 1988, A CLEANUP DECISION WAS FINALIZED FOR THE GDA THAT CALLED FOR A SLURRY WALL, CAP, AND GROUNDWATER PUMP AND TREAT SYSTEM. A UNILATERAL ADMINISTRATIVE ORDER (UAO) WAS ISSUED TO ALLIED SIGNAL IN MARCH 1989 FOR DESIGN AND CONTRUCTION OF THE GDA REMEDY. CONSTRUCTION WAS COMPLETED IN SEPTEMBER, 1995. THE CPLA INVESTIGATION WAS COMPLETED IN SEPTEMBER, 1990 AND DETERMINED THAT THE SITE, LAGOON AREA, AND GROUNDWATER IS CONTAMINATED WITH SEMI-VOLATILE ORGANICS, VOLATILE ORGANICS, METALS, AND CYANIDE. THE CPLA ROD WAS SIGNED IN DECEMBER, 1990 (AMENDED IN JULY, 1995), WHICH CALL