THE NOVAK SANITRAY LANDILL SUPERFUND SITE (NSL) IS LOCATED IN SOUTH WHITEHALL TOWNSHIP, LEHIGH COUNTY, PENNSYLVANIA, NORTHWEST OF ALLENTOWN, PENNSYLVANIA. THE LANDFILL IS APPROXIMATELY 65 ACRES IN SIZE. THE LANDFILL OPERATED FROM THE MID-1950'S UNTIL THE MID-1980'S AND RECEIVED WASTE FROM MUNICIPAL, COMMERCIAL AND INDUSTRIAL SOURCES. AFTER THE PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL RESOURCES (PADER) ISSUED AN ORDER TO THE NSL TO CEASE ALL SOLID WASTE DISPOSAL ACTIVITIES IN DECEMBER OF 1984, AN EPA CONTRACTOR CONDUCTED A SITE INSPECTION IN JUNE OF 1985 AND CALCULATED A HAZARD RANKING SYSTEM (HRS) SCORE OF 42.34 FOR THE SITE, PRIMARILY BASED ON THE POTENTIAL FOR HUMAN EXPOSURE TO HAZARDOUS SUBSTANCES VIA THE GROUND WATER. THE NSL WAS PROPOSED BY EPA FOR INCLUSION ON THE NATIONAL PRIORITIES LIST (NPL) ON JANUARY 22, 1987, AND LISTED ON THE NPL ON OCTOBER 4, 1989. ON DECEMBER 31, 1988, EPA SIGNED AN ADMINISTRATIVE ORDER ON CONSENT WITH 16 POTENTIALLY RESPONSIBLE PARTIES (PRPS) TO DO THE REMEDIAL INVESTIGATION/FEASIBILITY STUDY(RI/FS). THE FINAL RI/FS REPORT WAS SUBMITTED TO EPA ON JANUARY 28, 1993. THE PRIMARY CONTAMINANTS OF CONCERN AT THE SITE ARE VOLATILE ORGANIC CHEMICALS (VOC'S) AND SEMI-VOCS IN THE GROUNDWATER.THE PROPOSED PLAN WAS ISSUED ON MAY 26, 1993, AND A PUBLIC ME